BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CERN//INDICO//EN BEGIN:VEVENT SUMMARY:- DTSTART;VALUE=DATE-TIME:20200227T123000Z DTEND;VALUE=DATE-TIME:20200227T125000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1540@indico.tlabs.ac.za DESCRIPTION:https://indico.tlabs.ac.za/event/85/contributions/1540/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1540/ END:VEVENT BEGIN:VEVENT SUMMARY:Solar Models and Neutrino: where do we stand? DTSTART;VALUE=DATE-TIME:20200227T131000Z DTEND;VALUE=DATE-TIME:20200227T134000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1512@indico.tlabs.ac.za DESCRIPTION:Speakers: Aldo Serenelli (Institute of Space Sciences (ICE-CSI C))\nIn this talk\, I will present the status of solar models\, review the main limitations imposed by uncertain input physics in the models and by external constraints (aka solar abudances)\, and discuss the current const raints imposed from helioseismic and solar neutrino measurements. Also\, I will discuss the implications that our current limitations in modeling th e Sun have for stellar physics. Finally\, some discussion will be devoted to the importance of a prospective measurement of solar neutrinos from the CN-cycle would have for solar models and other fields.\n\nhttps://indico. tlabs.ac.za/event/85/contributions/1512/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1512/ END:VEVENT BEGIN:VEVENT SUMMARY:LiquidO detector development DTSTART;VALUE=DATE-TIME:20200225T150000Z DTEND;VALUE=DATE-TIME:20200225T153000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1542@indico.tlabs.ac.za DESCRIPTION:Speakers: Jeff Hartnell ()\nIn this talk I will present a pote ntially game-changing new particle detector technology called LiquidO. Thi s idea turns the concept behind the widespread scintillator detectors on i ts head: for 50 years research has focussed on making more and more transp arent scintillator materials\, whereas LiquidO actually requires an opaque scintillator. In LiquidO\, scintillation light is confined near its creat ion point due to a short scattering length and collected by a dense grid o f wavelength shifting fibres. The resulting topological information\, norm ally lost in transparent LS detectors\, allows for powerful event-by-event particle identification including MeV-scale positrons\, electrons and gam mas\, enabling strong background suppression. Another advantage over class ical liquid scintillator detectors is the possibility of loading to unprec edented levels\, since high transparency is no longer required. I will giv e an overview of the LiquidO idea in this talk as well as show the first r esults from the ’micro-LiquidO’ prototype detector\, which provided th e proof of principle of light confinement.\n\nhttps://indico.tlabs.ac.za/e vent/85/contributions/1542/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1542/ END:VEVENT BEGIN:VEVENT SUMMARY:Hints of non-unitarity in the present T2K and NO$\\nu$A data DTSTART;VALUE=DATE-TIME:20200227T121000Z DTEND;VALUE=DATE-TIME:20200227T123000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1452@indico.tlabs.ac.za DESCRIPTION:Speakers: Ushak Rahaman (University of Johannesburg)\nThe mixi ng of three neutrino flavours is parameterised by the unitary\nPMNS matrix . If there are more than three neutrino flavours\, effective $3\\times 3$ neutrino mixing\nmatrix will be non-unitary. In this paper\, we have analy sed the \nlatest T2K and NO$\\nu$A data with the hypothesis of non-unitary mixing matrix.\nPresent results from NO$\\nu$A and T2K collaboration have tension between them as NO$\\nu$A disfavours T2K\nbest-fit point at $1\\\ , \\sigma$ confidence level and vice versa. In this paper we have shown th at latest data from both the\nexperiments disfavour unitary $3\\times 3$ m ixing at $60\\%$ C.L. The combined analysis disfavours unitary mixing\nat $1\\\, \\sigma$ C.L. Moreover\, the tension between two experiments can al so be reduced with the non-unitary approach.\n\nhttps://indico.tlabs.ac.za /event/85/contributions/1452/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1452/ END:VEVENT BEGIN:VEVENT SUMMARY:Benchmarking aspects of weak interaction physics via precision bet a decay spectroscopy and two-nucleon transfer reactions DTSTART;VALUE=DATE-TIME:20200227T083000Z DTEND;VALUE=DATE-TIME:20200227T090000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1541@indico.tlabs.ac.za DESCRIPTION:Speakers: Smarajit Triambak (University of Western Cape)\nIn t his talk I shall present results from recent high-precision half-life and branching ratio measurements for 19Ne beta decay and the detailed spectros copic analyses of states in 136Ba and 136Cs via two-nucleon transfer react ions. I will briefly discuss the connection between these experiments in t he context of Standard Model tests\, highlighting the importance of reconc iling the experimental results with state-of-the-art theory calculations. Particular emphasis will be placed on implications pertaining to neutrinol ess double beta decays.\n\nhttps://indico.tlabs.ac.za/event/85/contributio ns/1541/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1541/ END:VEVENT BEGIN:VEVENT SUMMARY:The CONUS Experiment and future potential of coherent neutrino sca ttering DTSTART;VALUE=DATE-TIME:20200226T073000Z DTEND;VALUE=DATE-TIME:20200226T080000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1543@indico.tlabs.ac.za DESCRIPTION:Speakers: Manfred Lindner (Max-Planck-Institut für Kernphysik )\nCoherent elastic neutrino nucleus scattering (CEvNS) was first observed 2018 with neutrinos from pion decay at rest. CONUS aims at detecting CEvN S with low energy anti-neutrinos. It uses novel Germanium detector technol ogy and a virtual depth shield for operation at shallow depth only 17 mete rs away from the core of a multi GW power reactor. The talk will cover the status of CONUS\, latest results and an outlook of the potential of futur e CEvNS experiments.\n\nhttps://indico.tlabs.ac.za/event/85/contributions/ 1543/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1543/ END:VEVENT BEGIN:VEVENT SUMMARY:127I(nu\,e)127Xe reaction for solar neutrino spectrum clarificatio n DTSTART;VALUE=DATE-TIME:20200225T124000Z DTEND;VALUE=DATE-TIME:20200225T130000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1552@indico.tlabs.ac.za DESCRIPTION:Speakers: Almaz Fazliakhmetov (MIPT)\nSolar neutrino spectrum measurement plays a crucial role for solar metallicity determination. 127I (nu\,e)127Xe reaction is sensitive to CNO and boron components of the sola r neutrino spectrum due to the relatively high threshold (662 KeV). \nFor neutrinos with energies upper S_n = 7.246 MeV 127I(nu\,e) capture produces 126Xe + n. The concentration ratio of 127Xe and 126Xe could clarify param eters of high energy solar neutrino spectrum and neutrino oscillations. We present production rate estimation for of 127Xe and 126Xe based on experi mental strength function from 127I(p\,n)Xe reaction.\n\nhttps://indico.tla bs.ac.za/event/85/contributions/1552/ LOCATION:Parallel Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1552/ END:VEVENT BEGIN:VEVENT SUMMARY:Neutrino masses\, mixings and electroweak nuclear physics DTSTART;VALUE=DATE-TIME:20200227T073000Z DTEND;VALUE=DATE-TIME:20200227T080000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1553@indico.tlabs.ac.za DESCRIPTION:Speakers: Eligio Lisi (INFN\, Bari\, Italy)\nThe current statu s of the mass-mixing parameters in the three-neutrino framework will be re viewed. The increasing connections between neutrino and nuclear physics wi ll be highlighted. A case will be made for establishing an interdisciplina ry field\, that might be named as "electroweak nuclear physics".\n\nhttps: //indico.tlabs.ac.za/event/85/contributions/1553/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1553/ END:VEVENT BEGIN:VEVENT SUMMARY:Quenching of the spin-isospin response in nuclei DTSTART;VALUE=DATE-TIME:20200228T085000Z DTEND;VALUE=DATE-TIME:20200228T092000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1554@indico.tlabs.ac.za DESCRIPTION:Speakers: Peter von Neumann-Cosel (Institut fuer Kernphysik\, Technische Universitaet Darmstadt)\nQuenching of the Gamow-Teller strength in in weak processes is a well-established phenomenon. I will briefly rev iew our knowledge of quenching of the isospin-analog spin-M1 resonance. Th e interest is driven by recent developments of ab initio calculations base d on interactions derived from χEFT\, which allow a unified description o f electromagnetic and weak processes populating isospin-analog states. Thi s provides a unique testing ground for the role of two-body currents for t he quenching phenomenon. I will also discuss the (very limited) data on qu enching of higher multipoles and their implications for astrophysical scen arios and 0vββ decay and present some ideas for future experimental work using transverse electron scattering.\n\nhttps://indico.tlabs.ac.za/event /85/contributions/1554/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1554/ END:VEVENT BEGIN:VEVENT SUMMARY:The CROSS experiment: rejecting surface events with PSD DTSTART;VALUE=DATE-TIME:20200225T122000Z DTEND;VALUE=DATE-TIME:20200225T124000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1462@indico.tlabs.ac.za DESCRIPTION:Speakers: Hawraa Khalife (CSNSM-cnrs (orsay\, France))\nNeutri noless double-beta decay is a hypothetical rare nuclear transition (T^1/2> 1026 y). Its observation would provide an important insight about the natu re of neutrinos (Dirac or Majorana particle) demonstrating that the lepton number is not conserved. This decay can be investigated with bolometers e mbedding the double beta decay isotope\, the possibility to investigate th is rare process is strongly influenced by the background level in the regi on of interest. A new R&D has recently begun within the CROSS project (Cry ogenic Rare-event Observatory with Surface Sensitivity) aiming at the deve lopment of bolometric detectors\, embedding the promising isotopes 100Mo a nd 130Te\, capable of discriminating surface alpha and beta interactions b y exploiting the properties of superconducting material (Al film) or norma l metal (Pd film) deposited on the crystal faces (Li2MoO4 and TeO2). These films work as pulse-shape modifiers. The results of the tests on prototyp es performed at CSNSM (Orsay\, France) showed the capability of a few-µm (nm)-thick Al (Pd) film deposited on the crystal surface to discriminate s urface from bulk events\, with the required rejection level of the surface background. While Al film can only identify surface alpha particles\, the re are preliminary indications that normal-metal films can separate also t he beta surface component. This is a breakthrough in bolometric technology for double beta decay that could lead to reach a background index in the range 10^-5 counts/(keV kg y). The CROSS cryostat has been recently instal led underground (Canfranc\, Spain). We plan to run the first CROSS demonst rator in 2021 with 32 enriched Li2100MoO4 crystals containing ~5 kg of 100 Mo. A 5-year sensitivity to the effective Majorana neutrino mass mββ wit h a background of the order of 10^-3 counts /(keV kg y) would be in the ra nge 68-122 meV (2.8 × 10^25 y)\, at the level of the best currently runni ng experiments.\n\nhttps://indico.tlabs.ac.za/event/85/contributions/1462/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1462/ END:VEVENT BEGIN:VEVENT SUMMARY:Ab initio nuclear theory for beyond standard model physics DTSTART;VALUE=DATE-TIME:20200226T100000Z DTEND;VALUE=DATE-TIME:20200226T103000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1544@indico.tlabs.ac.za DESCRIPTION:Speakers: Jason Holt (TRIUMF)\nLong considered a phenomenologi cal field\, breakthroughs in many-body methods together with our treatment of nuclear and electroweak forces are rapidly transforming modern nuclear theory into a true first- principles\, or ab initio\, discipline. In this talk I will discuss recent advances\, which expand the scope of ab initio theory to global calculations of nuclei\, potentially as heavy as 208Pb\, including first predictions of the limits of nuclear existence into the m edium-mass region.\nI will then focus on recent extensions to fundamental problems in nuclear-weak physics\, including a proposed solution of the lo ng-standing gA quenching puzzle\, calculations of neutrinoless double-beta decay for determining neutrino masses\, and WIMP-nucleus scattering cross sections relevant for dark matter direct detection searches.\n\nhttps://i ndico.tlabs.ac.za/event/85/contributions/1544/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1544/ END:VEVENT BEGIN:VEVENT SUMMARY:Update on the HOLMES experiment to directly measure the neutrino m ass DTSTART;VALUE=DATE-TIME:20200225T134000Z DTEND;VALUE=DATE-TIME:20200225T140000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1466@indico.tlabs.ac.za DESCRIPTION:Speakers: Marco Faverzani ()\nThe absolute neutrino mass is st ill a missing parameter in the modern landscape of particle physics. The H OLMES experiment aims at exploiting the calorimetric approach to directly measure the neutrino mass through the kinematic measurement of the decay p roducts of the weakly-mediated decay of 163Ho. This low energy decaying is otope\, in fact\, undergoes electron capture emitting a neutrino and leavi ng its daughter nucleus\, 163Dy*\, in an atomic excited state. This\, in t urn\, relaxes by emitting electrons and\, to a considerably lesser extent\ , photons. The high energy portion of the calorimetric spectrum of this de cay is affected by the non-vanishing neutrino mass value. Given the small fraction of events falling in the region of interest\, to achieve a high e xperimental sensitivity on the neutrino mass it is important to have a hig h activity combined with a very small undetected pile-up contribution. To achieve these targets\, the final configuration of HOLMES foresees the dep loyment of a large number of 163Ho ion-implanted TESs characterized by an ambitiously high activity of 300 Hz each. This contribution will provide a n overview on the status of the major tasks that will bring HOLMES to achi eve a statistical sensitivity on the neutrino mass as low as 2 eV: from th e isotope production and embedding to the detector production and readout. \n\nhttps://indico.tlabs.ac.za/event/85/contributions/1466/ LOCATION:Parallel Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1466/ END:VEVENT BEGIN:VEVENT SUMMARY:Nuclear structure observables to shed light on neutrinoless double -beta decay DTSTART;VALUE=DATE-TIME:20200228T092000Z DTEND;VALUE=DATE-TIME:20200228T095000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1546@indico.tlabs.ac.za DESCRIPTION:Speakers: Javier Menendez (University of Barcelona)\nNeutrinol ess double-beta decay (0nbb) is notoriously difficult to observe. Moreover \, expected decay rates depend on the value of the nuclear matrix elements (NMEs) which are poorly known. In order to obtain insights on the NMEs\, and therefore on expected decay rates\, one can study other processes conn ected to 0nbb decay. In this talk I confront predictions and measurements of the half-life and beta spectrum of the two-neutrino double-beta decays to test nuclear models used to calculate 0nbb NMEs. In addition\, I discus s the relation between 0nbb NMEs (mediated by the weak interaction) and ot her nuclear observables such as double Gamow-Teller (strong) and double-ga mma\n(electromagnetic) transitions.\n\nhttps://indico.tlabs.ac.za/event/85 /contributions/1546/ LOCATION: URL:https://indico.tlabs.ac.za/event/85/contributions/1546/ END:VEVENT BEGIN:VEVENT SUMMARY:Status of the T2K experiment DTSTART;VALUE=DATE-TIME:20200227T070000Z DTEND;VALUE=DATE-TIME:20200227T073000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1502@indico.tlabs.ac.za DESCRIPTION:Speakers: Yuichi Oyama (KEK/J-PARC)\nCurrent status of the T2K long-baseline neutrino-oscillation experiment is presented.\nFuture upgra des and prospects in coming ten years are also reported.\n\nhttps://indico .tlabs.ac.za/event/85/contributions/1502/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1502/ END:VEVENT BEGIN:VEVENT SUMMARY:Theoretical description of half-lives and electron spectra for hig her order forbidden non-unique $\\beta$ decays DTSTART;VALUE=DATE-TIME:20200224T124000Z DTEND;VALUE=DATE-TIME:20200224T130000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1459@indico.tlabs.ac.za DESCRIPTION:Speakers: Anil Kumar (Indian Institute of Technology\, Roorkee \, India)\n**Theoretical description of half-lives and electron spectra fo r higher order forbidden non-unique $\\beta$ decays**\n\nAnil Kumar and Pr aveen C. Srivastava\n\nDepartment of Physics\, Indian Institute of Technol ogy Roorkee\,\nRoorkee 247 667\, India\n\n \nIn this work we have calculat ed log$ft$ and half-lives values of the higher order forbidden $\\beta$-de cays for selected nuclei [for e.g. $^{87}$Rb($3/2^-$) $\\rightarrow$ $^{8 7}$Sr($9/2^+$)] in the framework of the nuclear shell model [1-3]. In the present study\, we have included next-to-leading-order terms [4-6] in the shape functions to see their effect in the calculated half-lives and $\\b eta$ (or electron) spectra. The role of effective value of axial-vector co upling constant ($g_A$) in half-lives and $\\beta$ spectra for higher-forb idden beta decay are very important. The $\\beta^-$-spectrum of the fourth -forbidden non-unique decays of $^{113}$Cd and $^{115}$In strongly depends on the effective value of $g_A$ [4\,7]. In our study we will report the spectrum-shape method (SSM) for electron spectra with the effective value of $g_A$. With the SSM\, it is possible to extract information of effecti ve value of the weak coupling constant by comparing the theoretical and ex perimental $\\beta$ electron spectra of forbidden non-unique $\\beta$-dec ays.\n\n\n[1] H. Behrens and W. Bühring\, Electron Radial Wave Functions\ nand Nuclear Beta-decay (Clarendon Press\, Oxford\, 1982).\n\n[2] H. F. Sc hopper\, Weak Interactions and Nuclear Beta Decay\n(North-Holland\, Amster dam\, 1966).\n\n[3] J. Suhonen\, From Nucleons to Nucleus: Concepts of Mic roscopic\nNuclear Theory (Springer\, Berlin\, 2007).\n\n[4] M. Haaranen\, J. Kotila and J. Suhonen\, Spectrum-shape method and the next-to-leading-o rder terms of $\\beta$-decays shape factor\, Phys. Rev. C {\\bf 95}\, 024 327 (2017).\n\n[5] M.Haaranen\, P. C. Srivastava and J. Suhonen\, Forbidde n nonunique $\\beta$ decays and effective values of coupling constants\, P hys. Rev. C {\\bf 93}\, 034308 (2016). \n\n[6] J. Kostensalo\, M. Haaranen \, and J. Suhonen\, Electron spectra in forbidden $\\beta$ decays and the quenching of the weak axial-vector coupling constant $g_A$\, Phys. Rev. C {\\bf 95}\, 044313 (2017).\n\n\n[7] M. T. Mustonen\, M. Aunola\, and J. Su honen\, Theoretical description of the fourth-forbidden non-unique $\\beta $ decays of $^{113}$Cd and $^{115}$In\, Phys. Rev. C {\\bf 73}\,\n054301 ( 2006).\n\nhttps://indico.tlabs.ac.za/event/85/contributions/1459/ LOCATION:Parallel Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1459/ END:VEVENT BEGIN:VEVENT SUMMARY:Status of the SuperNEMO Experiment DTSTART;VALUE=DATE-TIME:20200224T093000Z DTEND;VALUE=DATE-TIME:20200224T100000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1493@indico.tlabs.ac.za DESCRIPTION:Speakers: Alessandro Minotti (LAPP - IN2P3)\nThe SuperNEMO Exp eriment is designed to search for neutrinoless double beta decays of the S e-82 isotope. The detector employs the multi-observable tracking-and-calor imetry technique pioneered by the NEMO-3 Experiment. Electrons originatin g from double beta decays of an isotope in thin isotopic foils are tracked in wire tracking chambers and their energy is measured by large scintilla tor blocks. The topology\, timing\, and energy provide a powerful means o f identifying and measuring the final state of decays. The technique is al so very effective in rejecting backgrounds due mostly to traces of natural radioactivity in foils and detector materials. The SuperNEMO Demonstrator module is currently being commissioned at the Modane Underground Laborato ry in the Frejus Tunnel. We will discuss details of the detector elements\ , the latest status of the experiment\, and the physics reach.\n\nhttps:// indico.tlabs.ac.za/event/85/contributions/1493/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1493/ END:VEVENT BEGIN:VEVENT SUMMARY:Neutrinos from CCSN and the contribution of nuclear experiments DTSTART;VALUE=DATE-TIME:20200224T141000Z DTEND;VALUE=DATE-TIME:20200224T144000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1498@indico.tlabs.ac.za DESCRIPTION:Speakers: Francesca Gulminelli (LPC Caen and University of Cae n\, France)\nThe impact of different microphysics inputs on the dynamics o f core collapse\nduring infall and early post-bounce is studied performing spherically symmetric simulations in general relativity using a multigrou p scheme for neutrino transport and full nuclear distributions in extended nuclear statistical equilibrium models.\nWe show that the individual EC r ates are the most important source of uncertainty in the simulations\, and establish a list of the most important nuclei to be studied in order to c onstrain the global rates.\nThe effect on the collapse dynamics and neutri no luminosity is studied.\n\nhttps://indico.tlabs.ac.za/event/85/contribut ions/1498/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1498/ END:VEVENT BEGIN:VEVENT SUMMARY:The search for eV sterile neutrinos with the STEREO experiment DTSTART;VALUE=DATE-TIME:20200228T070000Z DTEND;VALUE=DATE-TIME:20200228T072000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1467@indico.tlabs.ac.za DESCRIPTION:Speakers: Helena Almazan (Max-Planck-Institut fuer Kernphysik) \nIn the last decade\, two unsolved anomalies have appeared from the study of reactor neutrinos: one related to the neutrino spectral shape\, and an other to the absolute neutrino flux. The second one\, known as the Reactor Antineutrino Anomaly\, presents a deficit in the observed flux compared t o the expected one that could point to the existence of a light sterile ne utrino in the eV range participating in the oscillation phenomena.\nThe ST EREO experiment is a short baseline reactor antineutrino experiment trying to test the existence of those sterile neutrinos. This experiment\, takin g data since the end of 2016\, measures the antineutrino energy spectrum f rom the compact core of the research reactor of the Institut Laue-Langevin (Grenoble\, France) operated with highly enriched U-235 fuel. Covering ba selines between 9 and 11m with a segmented neutrino target\, STEREO can st udy the rate of neutrino interactions and compare it among cells to test o scillation hypotheses at different distances from the source. STEREO can a lso measure the absolute neutrino flux and spectral shape emitted from a p ure U-235 core.\nNeutrino data from 179 (235) days of reactor turned on (o ff) have been analyzed\, showing compatibility with the null oscillation h ypothesis and rejecting the best fit point of the Reactor Antineutrino Ano maly at 99.8% C.L. In this talk\, these results together with the latest i mprovements in the description of the detector models and the background t reatment are reported\, providing a crucial input in the search for steril e neutrinos.\n\nhttps://indico.tlabs.ac.za/event/85/contributions/1467/ LOCATION:Parallel Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1467/ END:VEVENT BEGIN:VEVENT SUMMARY:COHERENT’s Neutrino-Induced Neutron Detectors DTSTART;VALUE=DATE-TIME:20200225T134000Z DTEND;VALUE=DATE-TIME:20200225T140000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1474@indico.tlabs.ac.za DESCRIPTION:Speakers: Samuel Hedges (Duke University)\nNeutrino-nucleus in teractions can produce excited nuclear states that can de-excite by emitti ng particles\, including neutrons. Neutrino-induced neutrons (NINs) produc ed in common gamma shielding material\, such as lead or iron\, can pose a background for neutrino and dark matter experiments. Additionally\, NIN pr oduction in lead is the primary mechanism for the Helium and Lead Observat ory (HALO) to detect supernova neutrinos\, and iron-based supernova NIN de tectors have been proposed. As part of the COHERENT experiment\, two detec tors seeking to study NIN production in lead and iron have been deployed t o the Spallation Neutron Source (SNS). An overview of the detector design and current status will be presented.\n\nhttps://indico.tlabs.ac.za/event/ 85/contributions/1474/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1474/ END:VEVENT BEGIN:VEVENT SUMMARY:Theory of Double-Beta Decay from First Principles DTSTART;VALUE=DATE-TIME:20200226T103000Z DTEND;VALUE=DATE-TIME:20200226T110000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1508@indico.tlabs.ac.za DESCRIPTION:Speakers: Jonathan Engel ()\nI discuss recent work to calculat e the nuclear matrix elements that govern neutrinoless double beta decay i n an ab-initio way\, that is\, without the adjustment of parameters except those in chiral effective field theory. A method based on the use of tec hniques from energy-density functional theory in combination with ab-initi o Hamiltonians has proved particularly powerful. I describe its applicati on to the double-beta matrix elements of 48Ca and 76Ge.\n\nhttps://indico. tlabs.ac.za/event/85/contributions/1508/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1508/ END:VEVENT BEGIN:VEVENT SUMMARY:Majorana neutrino mass generation\, $0\\nu\\beta\\beta$-decay and nuclear matrix elements DTSTART;VALUE=DATE-TIME:20200226T090000Z DTEND;VALUE=DATE-TIME:20200226T093000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1476@indico.tlabs.ac.za DESCRIPTION:Speakers: Fedor Simkovic (Comenius University)\n: A Quark Cond ensate See-Saw (QCSS) mechanism of generation of Majorana neutrino mass du e to spontaneous breaking of chiral symmetry accompanied with the formatio n of a quark condensate is presented. Consequencies of this scenario of ne utrino mass generation for the neutrinoless double beta decay ($0\\nu\\bet a\\beta$-decay)\, tritium beta decay and cosmological measurements are dra wn. The attention is paid also to the problem of reliable calculation of t he $0\\nu\\beta\\beta$-decay nuclear matrix elements and the evaluation of quenching of the axial-vector coupling constant $g_A$.\nFor solving of th ese nuclear physics problems an importance of experimental study of the tw o-neutrino double-beta decay\, muon capture in nuclei and nuclear charge-e xchange reactions is stressed.\n\nhttps://indico.tlabs.ac.za/event/85/cont ributions/1476/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1476/ END:VEVENT BEGIN:VEVENT SUMMARY:Borexino solar neutrino data as a probe of non-standard neutrino p roperties DTSTART;VALUE=DATE-TIME:20200225T120000Z DTEND;VALUE=DATE-TIME:20200225T122000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1477@indico.tlabs.ac.za DESCRIPTION:Speakers: Alina Vishneva (JINR)\nNeutrinos produced in the Sun can be used as a probe of neutrino physics beyond the Standard Model (BSM ). In this study\, two BSM processes are considered\, namely\, non-standar d neutrino-electron interactions\, and electromagnetic neutrino interactio n caused by an anomalous magnetic moment. These processes may occur during both neutrino propagation through the solar matter and detection\, causin g distortions in solar neutrino fluxes\, survival probability\, interactio n cross sections and other properties. In the Borexino experiment\, possib le impacts of the non-standard interactions of solar neutrinos to the data have been estimated using both interaction rate and spectral information. For the anomalous neutrino magnetic moment study\, both neutrino and anti -neutrino datasets have been considered.\n\nhttps://indico.tlabs.ac.za/eve nt/85/contributions/1477/ LOCATION:Parallel Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1477/ END:VEVENT BEGIN:VEVENT SUMMARY:Status of the Mo-100 based AMoRE neutrinoless double beta decay ex periment DTSTART;VALUE=DATE-TIME:20200227T100000Z DTEND;VALUE=DATE-TIME:20200227T103000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1506@indico.tlabs.ac.za DESCRIPTION:Speakers: Hong Joo Kim (Kyungpook National University)\nThe AM oRE (Advanced Mo-based Rare process Experiment) intends to find an evidenc e for neutrinoless double beta decay of Mo-100 by using a cryogenic techni que with molybdate based crystal scintillators. The crystals\, which are c ooled down to 10~20 mK temperatures\, are equipped with MMC-type phonon an d photon sensors to detect both thermal and scintillation signals produced by a particle interaction in the crystal to achieve high energy resolutio n and efficient particle discrimination. The AMoRE-pilot experiment with an array of six 48deplCa100MoO4 crystals with a total mass of about 1.9 kg was performed at the 700-m-deep YangYang underground laboratory and AM oRE-I preparation is in progress with ab ~ 6.1 kg of crystals\, mostly 48 deplCa100MoO4 and several R&D crystals such as Li2100MoO4 crystals. Signi ficant improvement of effective Majorana neutrino mass sensitivity at the level of inverted hierarchy of neutrino mass\, 20-50 meV\, could be achiev ed by the AMoRE-II with 200 kg of molybdate crystals at the new 1\,000 m d eep underground laboratory excavated by the end of 2021 in the Yemi. Re sults of the AMoRE-pilot and status of the AMoRE-I and AMoRE-II preparatio n will be presented.\n\nhttps://indico.tlabs.ac.za/event/85/contributions/ 1506/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1506/ END:VEVENT BEGIN:VEVENT SUMMARY:GT Nuclear resonances for 71Ga(nu\,e)71Ge reaction investigation DTSTART;VALUE=DATE-TIME:20200228T072000Z DTEND;VALUE=DATE-TIME:20200228T074000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1551@indico.tlabs.ac.za DESCRIPTION:Speakers: Grigory Koroteev (Moscow Institute of Physics and Te chnology)\nNeutrino-matter interaction has great importance for neutrino p hysics and astrophysics. Neutrino capture cross-section depends on the str ucture of the target nucleus strength function. 71Ga(v\,e)71Ge process cou ld be analysed using the charge-exchange strength functions of 71Ga(p\,n)7 1Ge and 71Ga(3He\,t)71Ge reactions. Nuclear phenomenology of charge-exchan ge reactions describes not only discrete excited levels\, but also collect ive resonant states such as GTR and pygmy-resonances. It is shown that acc ounting of GT-resonances increase neutrino capture rate and that capture r ate is very sensitive to the exact behavior of the Fermi function at low e nergies. We will discuss the quenching effect estimation and the accuracy of B(GT) extraction from experimental data as a function of resonance widt h. The talk proposes a comparison of the experimental data processing and calculations obtained in the framework of the self-consistent theory of fi nite Fermi systems.\n\nhttps://indico.tlabs.ac.za/event/85/contributions/1 551/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1551/ END:VEVENT BEGIN:VEVENT SUMMARY:Searching for neutrinoless double beta of 100Mo: the CUPID-Mo expe riment DTSTART;VALUE=DATE-TIME:20200224T120000Z DTEND;VALUE=DATE-TIME:20200224T122000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1481@indico.tlabs.ac.za DESCRIPTION:Speakers: Claudia Nones ()\n$^{100}$Mo deployed in the form of enriched Li$_{2}$ MoO$_{4}$ crystals can be used as a promising scintilla ting bolometer to search for 0$\\nu\\beta\\beta$ in a tonne-scale experime nt. In this talk we will review the properties of this target crystal and achieved bolometric detector performances that make it the baseline choice for CUPID (CUORE Upgrade with Particle ID).\nCUPID-Mo\, installed in the underground laboratory of Modane\, consists of an array of 20 enriched ~0. 2 kg Li2MoO4 crystals equipped with 20 cryogenic Ge bolometers to discrimi nate alpha from beta/gamma events by the detection of both heat and scinti llation light signals. The commissioning has started in december 2018 and we have switched to routine data taking in spring 2019. In this talk\, we will present results confirming an excellent bolometric performance of $\ \sim$5-6 keV energy resolution (FWHM) at 2615 keV\, full alpha to beta gam ma separation and improved estimates on the radiopurity of the crystals. W e will also report on the background level observed in the region of inter est and give a competitive limit on the neutrinoless double-beta decay hal f-life of Mo-100 as well the most precise measurement of the 2-neutrino de cay mode. We will conclude with an expectation of the sensitivity of CUPID -Mo and prospects for CUPID.\n\nhttps://indico.tlabs.ac.za/event/85/contri butions/1481/ LOCATION:Parallel Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1481/ END:VEVENT BEGIN:VEVENT SUMMARY:NEON - Neutrino Elastic-scattering Observation with NaI(Tl) DTSTART;VALUE=DATE-TIME:20200225T132000Z DTEND;VALUE=DATE-TIME:20200225T134000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1485@indico.tlabs.ac.za DESCRIPTION:Speakers: Hyun Su Lee (Institute for Basic Science)\nNEON is a proposed experiment to detect coherent elastic neutrino-nucleus scatterin g (CENNS) with high light yield NaI(Tl) detectors and a reactor as antinue trino source. Due to extremely low energy signal predicted from the CENNS process\, one needs to develop extremely low threshold detectors. We have optimized size of the crystals and developed new optical coupling design f or high light collection efficiency. With current best crystal of approxim ately 23 photoelectrons per keV\, a sub-keV scintillation signal is access ible with the NaI(Tl) crystals. We consider to install approximately 10~kg target mass at Hanbit reactor power plant\, which is same place of the NE OS short baseline neutrino experiment\, in early 2020. The site is 24 m f ar from reactor core with measured antineutrino flux of 7$\\times$10$^{-12 }$/cm$^2$/s. We will present current status of detector developments as we ll as our strategy for an observation of CENNS process with the reactor an tineutrino.\n\nhttps://indico.tlabs.ac.za/event/85/contributions/1485/ LOCATION:Main Venue and Parallel Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1485/ END:VEVENT BEGIN:VEVENT SUMMARY:COSINE experiment - A WIMP dark matter search experiment with NaI( Tl) detectors DTSTART;VALUE=DATE-TIME:20200225T103000Z DTEND;VALUE=DATE-TIME:20200225T110000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1505@indico.tlabs.ac.za DESCRIPTION:Speakers: Yeongduk Kim (Institute for Basic Science)\nThe COSI NE experiment searches for interactions of Weakly Interacting Massive Part icles (WIMPs) using an array of NaI(Tl) crystal detectors in the 700-m-dee p Yangyang underground laboratory\, Korea. The main goal is to check the a nnual modulation signal observed by DAMA/LIBRA with the same target materi al. The first phase of the experiment\, COSINE-100 with 106 kg of NaI(Tl) crystals\, has been running stably for more than 3 years. Several analyses in addition to the annual modulation have been actively ongoing\, based o n the 1 keV energy threshold and about 3 counts/day/kg/keV background rate in an energy region between 1 and 6 keV. In this talk\, the detector perf ormance\, recent analysis results\, and future prospects of the COSINE exp eriment will be presented.\n\nhttps://indico.tlabs.ac.za/event/85/contribu tions/1505/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1505/ END:VEVENT BEGIN:VEVENT SUMMARY:Tests of three-neutrino paradigm by MINOS and MINOS+ Experiments DTSTART;VALUE=DATE-TIME:20200227T113000Z DTEND;VALUE=DATE-TIME:20200227T115000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1484@indico.tlabs.ac.za DESCRIPTION:Speakers: Karol Lang (University of Texas at Austin)\nMINOS an d MINOS+ experiments collected unprecedented amount of data using two long baseline detectors that operated on axis of the NuMI neutrino beam at Fer milab. This has allowed to conduct some of the best measurements of neutri no oscillations that provide stringent constraints on neutrino mixing and transitions involving sterile neutrinos. We will present the latest result s from these studies.\n\nhttps://indico.tlabs.ac.za/event/85/contributions /1484/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1484/ END:VEVENT BEGIN:VEVENT SUMMARY:Probing Dark Energy with the SKA in Africa DTSTART;VALUE=DATE-TIME:20200225T090000Z DTEND;VALUE=DATE-TIME:20200225T093000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1509@indico.tlabs.ac.za DESCRIPTION:Speakers: Roy Maartens (University of the Western Cape)\nI wil l survey the progress towards the SKA radio telescope array\, including th e successful building and operation of South Africa's MeerKAT array. Then I will focus on how these instruments can deliver new measurements and ins ights about the Dark Energy that is driving the accelerated expansion of t he Universe.\n\nhttps://indico.tlabs.ac.za/event/85/contributions/1509/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1509/ END:VEVENT BEGIN:VEVENT SUMMARY:What we can learn from CEvNS? (CEvNS - Coherent Elastic Neutrino N ucleus Scattering) DTSTART;VALUE=DATE-TIME:20200226T080000Z DTEND;VALUE=DATE-TIME:20200226T083000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1510@indico.tlabs.ac.za DESCRIPTION:Speakers: Yuri Efremenko (University of Tennessee\, USA)\nCEvN S process has been predicted in 1974 right after discovery of the neutral current of the week interactions. It took more than 40 years to confirm th is prediction experimentally. In 2017 COHERENT collaboration reported of t he first observation of CEvNS using 14 kg CsI detector and SNS neutrino so urce at the ORNL. In my talk I will review first observation of CEvNS and present experimental status to study CEvNS. The focus of my talk will be how we can use accurate CEvNS measurements to test S-M of the particle phy sics\, and make contribution into nuclei physics and astrophysics.\n\nhttp s://indico.tlabs.ac.za/event/85/contributions/1510/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1510/ END:VEVENT BEGIN:VEVENT SUMMARY:Precision mass measurements for nuclear and neutrino physics studi es DTSTART;VALUE=DATE-TIME:20200225T073000Z DTEND;VALUE=DATE-TIME:20200225T080000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1487@indico.tlabs.ac.za DESCRIPTION:Speakers: Klaus Blaum (Max-Planck-Institut für Kernphysik\, S aupfercheckweg 1\, 69117 Heidelberg\, Germany )\nRapidly developing neutri no physics has found in Penning-trap mass spectrometry a staunch ally in i nvestigating and contributing to a variety of fundamental problems. The mo st familiar are the absolute neutrino mass and the possible existence of r esonant neutrinoless double-electron capture / double-beta dacay and of ke V-sterile neutrinos. This review provides an overview on the latest achiev ements and future perspectives of Penning-trap mass spectrometry on short- lived as well as stable nuclides with applications in nuclear structure\, neutrino physics and most recently even in dark matter searches where rela tive mass uncertainties at the level of 10-11 and below are required.\n\nh ttps://indico.tlabs.ac.za/event/85/contributions/1487/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1487/ END:VEVENT BEGIN:VEVENT SUMMARY:MAJORANA\, LEGEND\, and the future of the search for Neutrinoless Double-Beta Decay in Ge-76 DTSTART;VALUE=DATE-TIME:20200224T103000Z DTEND;VALUE=DATE-TIME:20200224T110000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1491@indico.tlabs.ac.za DESCRIPTION:Speakers: David Hervas (University of North Carolina at Chapel Hill)\nThe MAJORANA collaboration is searching for neutrinoless double-be ta ($0\\nu\\beta\\beta$) decay in $^{76}$Ge using modular arrays of enrich ed\, high-purity Ge detectors. The MAJORANA DEMONSTRATOR consists of an ar ray of 44 kg of high-purity Ge detectors with a p-type point contact geome try currently operating in the Sanford Underground Research Facility in Le ad\, South Dakota. The ultra-low background and world-leading energy resol ution achieved by the MAJORANA DEMONSTRATOR enable a sensitive $0\\nu\\bet a\\beta$ decay search\, as well as additional searches for physics beyond the Standard Model. The Large Enriched Germanium Experiment for Neutrinole ss Double-Beta Decay (LEGEND) will combine the best techniques from the DE MONSTRATOR and the Germanium Detector Array (GERDA) to reach even higher s ensitivities to $0\\nu\\beta\\beta$ decay. The LEGEND collaboration is pur suing a phased approach to a tonne-scale $^{76}$Ge experiment\, with ultim ate discovery potential at a half-life beyond $10^{28}$ years. The first p hase\, LEGEND-200\, is the deployment of 200 kg of enriched $^{76}$Ge dete ctors in the existing GERDA cryostat at the LNGS underground lab in Italy. LEGEND-200\, scheduled to start operation in 2021\, will use GERDA and MA JORANA enriched detectors and newly developed inverted coax point contact detectors. The MAJORANA DEMONSTRATOR's latest results will be presented as well as the construction status of LEGEND-200\, ongoing LEGEND tonne-scal e R&D\, and the physics outlook of the LEGEND experimental program.\n\nhtt ps://indico.tlabs.ac.za/event/85/contributions/1491/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1491/ END:VEVENT BEGIN:VEVENT SUMMARY:Status and prospects of the KM3NeT/ORCA DTSTART;VALUE=DATE-TIME:20200227T123000Z DTEND;VALUE=DATE-TIME:20200227T125000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1471@indico.tlabs.ac.za DESCRIPTION:Speakers: Salvador Miranda Palacios (University of Johannesbu rg)\nKM3NeT is the next-generation neutrino Cherenkov telescope currently under construction in the Mediterranean Sea. Its low energy configuration ORCA (Oscillations Research with Cosmics in the Abyss) is optimised for th e detection of atmospheric neutrinos with energies above ∼1 GeV. The mai n research target of the ORCA detector is the measurement of the neutrino mass ordering (NMO) and atmospheric neutrino oscillation parameters. This contribution will present the first results on atmospheric neutrinos detec ted with the already deployed ORCA detection units. The projected sensitiv ity of the detector to the NMO will be shown\, alongside prospects for ear ly analyses of data collected with a small sub-array of the detector durin g construction phase. The ORCA potential for other physics topics\, includ ing dark matter\, non-standard interactions\, sterile neutrinos\, and supe rnovae neutrino detection will also be presented.\n\nhttps://indico.tlabs. ac.za/event/85/contributions/1471/ LOCATION:Parallel Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1471/ END:VEVENT BEGIN:VEVENT SUMMARY:New results from the CUORE experiment DTSTART;VALUE=DATE-TIME:20200224T090000Z DTEND;VALUE=DATE-TIME:20200224T093000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1492@indico.tlabs.ac.za DESCRIPTION:Speakers: Giovanni Benato (LNGS-INFN)\nThe Cryogenic Undergrou nd Observatory for Rare Events (CUORE) is the first bolometric experiment searching for neutrinoless double-beta decay (0νββ) that has been able to reach the one-ton scale. The detector\, located at the Laboratori Nazio nali del Gran Sasso in Italy\, consists of an array of 988 TeO$_{2}$ cryst als arranged in a compact cylindrical structure of 19 towers. The construc tion of the experiment was completed in August 2016 with the installation of all towers in the cryostat. CUORE achieved its first physics data run i n 2017 corresponding to a TeO$_{2}$ exposure of 86.3 kg∙yr and a median statistical sensitivity to a $^{130}$Te 0νββ half-life of 7.0 × 10$^{2 4}$ yr. Following multiple optimization campaigns in 2018\, CUORE is curre ntly in stable operating mode and has accumulated data corresponding to a TeO$_{2}$ exposure approaching 500 kg∙yr. In this talk\, we present the updated 0νββ results of CUORE\, as well as review the detector performa nce. We finally give an update of the CUORE background model and the measu rement of the $^{130}$Te two neutrino double-beta decay (2νββ) half-lif e.\n\nhttps://indico.tlabs.ac.za/event/85/contributions/1492/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1492/ END:VEVENT BEGIN:VEVENT SUMMARY:Nuclear responses for double beta decay and muon capture DTSTART;VALUE=DATE-TIME:20200228T095000Z DTEND;VALUE=DATE-TIME:20200228T102000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1447@indico.tlabs.ac.za DESCRIPTION:Speakers: Lotta Jokiniemi (University of Jyväskylä)\nTo desc ribe the double beta decay processes reliably one needs a possibility to t est the involved virtual transitions against experimental data. In this wo rk we manifest how to utilise\nthe nuclear and lepton ($\\mu$) charge-exca nge reaction data in the study of $0\\nu\\beta\\beta$ decay and astro-neut rinos. In my contribution I will cover the theoretical aspects of ordinary muon capture (OMC) as well as the recent studies of (3He\,t) and charge-e change studies at RCNP\, Osaka [1].\n\nThe OMC strength function in 100Nb was computed in the pnQRPA framework [2]\, and compared with the experimen tal strength function measured at RCNP in Osaka [3]. The calculated first OMC giant resonance in 100Nb is in agreement with the experimental value. However\, the computed total OMC strength is higher than the measured stre ngth\, which refers to quenched g_A value.\nFurthermore\, the OMC rates to the daughter nuclei of the $0\\nu\\beta\\beta$ decay triplets of immediat e\nexperimental interest are computed [4] and compared with available data of [5].\nThe capture rates to the low-lying states of 76As are in accorda nce with the data. The OMC rates to\nthe daughter nuclei of $0\\nu\\beta\\ beta$ decay triplets are also compared with the corresponding $0\\nu\\beta \\beta$\nmatrix elements in order to find possible connections between the m [6]. \n\nEventually\, the OMC process can be used to probe the structure of the intermediate states appearing in the\ndouble-beta-decay process. F uture experiments can help fine-tune the nuclear-structure parameters for the\ndouble-beta-decay calculations.\n \n [1] H. Ejiri\, J. Suhonen\, and K. Zuber\, Phys. Rep. 797\, 1 (2019).\n\n[2] L. Jokiniemi\, J. Suhonen\, H . Ejiri\, and I. H. Hashim\, \n Phys. Lett. B 794\, 143 (2019). \n \n[3] I. H. Hashim\, H. Ejiri\, T. Shima\, K. Takahisa\, A. Sato\, Y. Kuno\, K. Ninomiya\, \n N. Kawamura\, and Y. Miyake\, Phys. Rev. C 97\, 014617 (20 18). \n \n[4] L. Jokiniemi and J. Suhonen\, \n Phys. Rev. C 100\, 01461 9 (2019). \n \n[5] D. Zinatulina\, V. Brudanin\, V. Egorov\, C. Petitjean \, M. Shirchenko\, J. Suhonen\, and \nI. Yutlandov\, Phys. Rev. C 99\, 024 327 (2019). \n\n[6] L. Jokiniemi\, and J. Suhonen\, Phys. Rev. C (2020)\, submitted.\n\nhttps://indico.tlabs.ac.za/event/85/contributions/1447/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1447/ END:VEVENT BEGIN:VEVENT SUMMARY:Annual modulation with DAMA/LIBRA-phase2 DTSTART;VALUE=DATE-TIME:20200225T100000Z DTEND;VALUE=DATE-TIME:20200225T103000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1489@indico.tlabs.ac.za DESCRIPTION:Speakers: Pierluigi Belli (INFN Roma Tor Vergata)\nAbstract: T he new results obtained by the first 6 independent annual cycles of DAMA/L IBRA–phase2 experiment deep underground at Gran Sasso are presented\; th ey correspond to a total exposure of 1.13 ton × yr. The improved experime ntal configuration with respect to the phase1 allowed a lower energy thres hold. The DAMA/LIBRA–phase2 data confirm the evidence of a signal that m eets all the requirements of the model independent Dark Matter annual modu lation signature\, at high C.L. The model independent DM annual modulation result is compatible with a wide set of DM candidates. In this talk we su mmarize some of them and perspectives for the future will be outlined.\n\n https://indico.tlabs.ac.za/event/85/contributions/1489/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1489/ END:VEVENT BEGIN:VEVENT SUMMARY:Sensitivity to the neutrinoless double beta decay of the DARWIN ob servatory DTSTART;VALUE=DATE-TIME:20200225T120000Z DTEND;VALUE=DATE-TIME:20200225T122000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1464@indico.tlabs.ac.za DESCRIPTION:Speakers: Patricia Sanchez-Lucas (University of Zurich)\nThe D ARWIN observatory is a proposed next-generation experiment whose primary g oal is to search for particle dark matter. It will operate 50 tonnes of na tural xenon in a dual-phase time projection chamber under ultra-low backgr ound conditions. These two characteristics make DARWIN sensitive to other rare interactions\, like the neutrinoless double beta decay of the isotope Xe136. Without isotopic enrichment DARWIN will contain in total more than 4.5t of Xe136. We present here the expected half-life sensitivity for thi s rare decay. This sensitivity is based on a detailed study of attainable backgrounds\, Monte Carlo predictions and event topologies in the homogene ous target. We show that DARWIN will be comparable in its science reach to dedicated double beta decay experiments using enriched Xe136.\n\nhttps:// indico.tlabs.ac.za/event/85/contributions/1464/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1464/ END:VEVENT BEGIN:VEVENT SUMMARY:Dark Matter Direct Detection with Noble Liquids DTSTART;VALUE=DATE-TIME:20200225T093000Z DTEND;VALUE=DATE-TIME:20200225T100000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1513@indico.tlabs.ac.za DESCRIPTION:Speakers: Elena Aprile (Columbia University)\nWhat is the Dar k Matter which makes 85% of the matter in the Universe? We have been askin g this question for many decades and used a variety of experimental appro aches to address it\, with detectors on Earth and in space. Yet\, the na ture of Dark Matter remains a mystery. An answer to this fundamental ques tion will likely come from ongoing and future searches with accelerators\ , indirect and direct detection. Detection of a Dark Matter signal in an u ltra-low background terrestrial detector will provide the most direct ev idence of its existence and will represent a ground-breaking discovery in physics and cosmology. I will review direct detection experiments usin g noble liquids which have shown the highest sensitivity to-date.\n\nhttp s://indico.tlabs.ac.za/event/85/contributions/1513/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1513/ END:VEVENT BEGIN:VEVENT SUMMARY:The nEXO double-beta decay experiment DTSTART;VALUE=DATE-TIME:20200224T100000Z DTEND;VALUE=DATE-TIME:20200224T103000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1511@indico.tlabs.ac.za DESCRIPTION:Speakers: Giorgio Gratta (Stanford University)\nThe search for neutrinoless double-beta decay represents one of the most exciting \noppo rtunities to explore physics beyond the Standard Model. The knowledge tha t\nneutrinos are massive particles\, yet\, with masses that are many order s of magnitude \nsmaller than those of charged fermions\, provides encoura gement to further push \nthe sensitivity of these experiments.\n\nnEXO is a 5-tonne detector based on the isotope 136Xe in a single phase\, liquid\n time projection chamber. Its design is based on EXO-200\, the first 100k g-class \nexperiment to take data\, demonstrating the power of a monolithi c detector with \ngood energy resolution and superior topological event re construction. nEXO is \nexpected to reach a half-life sensitivity of abou t 10^28 years\, covering substantial\ndiscovery space. The detector inclu des several state-of-the-art components but\,\nat the same time\, offers a conservative approach in which the background estimate\nis solidly ground ed on existing materials and reliable simulation tools. In this talk\n the nEXO design and sensitivity reach will be discussed.\n\nhttps://indico .tlabs.ac.za/event/85/contributions/1511/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1511/ END:VEVENT BEGIN:VEVENT SUMMARY:- DTSTART;VALUE=DATE-TIME:20200224T130000Z DTEND;VALUE=DATE-TIME:20200224T132000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1525@indico.tlabs.ac.za DESCRIPTION:https://indico.tlabs.ac.za/event/85/contributions/1525/ LOCATION:Parallel Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1525/ END:VEVENT BEGIN:VEVENT SUMMARY:GERDA Highlights: Probing the Majorana Neutrino Mass at 100 meV DTSTART;VALUE=DATE-TIME:20200225T132000Z DTEND;VALUE=DATE-TIME:20200225T134000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1463@indico.tlabs.ac.za DESCRIPTION:Speakers: Luciano Pandola (INFN - Laboratori Nazionali del Sud )\nSince 2010\, the GERDA project has been operated at Laboratori Nazional i del Gran Sasso (LNGS)\, searching for the neutrinoless double beta deca y (0νββ) of Ge-76 to Se-76. GERDA is nowadays completing its mission\, having attained 100 kgy exposure and\, as first experiment\, surpassed the goal sensitivity of 10^26 yr on the half-life of the searched process. Si nce its beginning in 2010 GERDA has increased its sensitivity for the meas urement of the decay by almost a factor of 5\, thanks to excellent passive shield setup\, operating procedures\, energy resolution\, and implementat ion of active background suppression strategies. The GERDA results allow t o directly probe the Majorana neutrino mass down to about 100 meV scale.\n In this talk\, the GERDA setup\, technological features and operation will be summarized\, and the above outlined results\, based on an exposure of about 85 kgy\, will be reviewed in the framework of results from other 0ν ββ players. The Ge-76 two neutrino double beta decay half-life measured by GERDA\, the main detected background sources\, the performances and ba ckground indexes for the different detector types\, the data analysis flow and algorithms will be discussed as well.\nThe perspectives of the final GERDA data release and the transition to the LEGEND project will be addres sed.\n\nhttps://indico.tlabs.ac.za/event/85/contributions/1463/ LOCATION:Parallel Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1463/ END:VEVENT BEGIN:VEVENT SUMMARY:Axial Vector Form Factors of the Nucleon using lattice QCD DTSTART;VALUE=DATE-TIME:20200228T080000Z DTEND;VALUE=DATE-TIME:20200228T082000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1514@indico.tlabs.ac.za DESCRIPTION:Speakers: Rajan Gupta (Los Alamos National Laboratory)\nThe su ccess of experiments such as DUNE require the determination of neutrino fl ux and cross-section with nuclear targets with unprecedented accuracy. A c rucial input in the calculations of these is the axial form factor. Starti ng from the standard model that defines the interaction of the axial curre nt with quarks\, one needs to include both QCD corrections that bind quark s into nucleons and nuclear effects that arise in heavy nuclear targets su ch as argon. Experimental access to the first\, QCD corrections for nucle ons\, is prevented by safety concerns posed by liquid hydrogen targets. Ax ial and electromagnetic form factors of the nucleon can be calculated from first principals using lattice QCD. This talk will show that we now have control over all sources of systematic errors that arise in lattice QCD c alculations and the axial form factors satisfy the PCAC relation\, an esse ntial and non-trivial check [see arXiv:1905.06470]. Finally\, I will prese nt state-of-the-art results at the physical pion mass and in the continuum limit and compare them with phenomenology. Prospects for reaching 1–2% accuracy will be discussed.\n\nhttps://indico.tlabs.ac.za/event/85/contrib utions/1514/ LOCATION:Parallel Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1514/ END:VEVENT BEGIN:VEVENT SUMMARY:Neutrinos in DUNE: long-baseline oscillations and non-beam physics DTSTART;VALUE=DATE-TIME:20200227T063000Z DTEND;VALUE=DATE-TIME:20200227T070000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1503@indico.tlabs.ac.za DESCRIPTION:Speakers: Ernesto Kemp (University of Campinas - UNICAMP)\nThe Deep Underground Neutrino Experiment (DUNE) is one of the most ambitious particle physics experiments of the next generation. DUNE consists of two detectors: the Near Detector (ND) - just downstream of the neutrino beam a t FERMILAB (IL - USA)\, and the Far Detector (FD) - 1300 km away and 1500 m deep in the underground SURF laboratory (SD - USA). The ND is a multi-te chnology apparatus aiming to constrain the uncertainties related to the un oscillated neutrino flux and also to explore neutrino interactions physics . The FD is a modular 40 kton fiducial mass Liquid Argon Time Projection C hamber\, dedicated to studying long-baseline neutrino oscillations\, which includes precise measurements of neutrino mixing parameters\, the CP viol ation phase as well as the determination of neutrino mass hierarchy. The p hysics list of DUNE extends to non-beam physics like supernova neutrinos a nd search for nucleon decay. In this contribution\, we describe the main f eatures of DUNE and its sensitivity for measurements on the primary physic s goals.\n\nhttps://indico.tlabs.ac.za/event/85/contributions/1503/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1503/ END:VEVENT BEGIN:VEVENT SUMMARY:Decay Characteristics of the Scissors Mode of 0νββ-Decay Partne r Isotopes* DTSTART;VALUE=DATE-TIME:20200228T070000Z DTEND;VALUE=DATE-TIME:20200228T072000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1486@indico.tlabs.ac.za DESCRIPTION:Speakers: Jörn Kleemann (AG Pietralla Institut für Kernphysi k Technische Universität Darmstadt)\nThe search for neutrinoless double b eta (0νββ) decay\, a process only allowed if the neutrino were a Majora na particle\, recently gained much attention with numerous experiments bei ng dedicated to its observation. It would demonstrate lepto-genesis in the universe and allow the determination of the neutrino mass from its decay rate. However\, to quantitatively extract the neutrino mass or estimate de cay rates a nuclear matrix element (NME) is required\, which has to be cal culated using nuclear structure models. One of them is the Interacting Bos on Model 2 (IBM-2)\, which will be discussed below. Those calculations can be difficult because many of the 0νββ-decay candidate nuclei lie in re gions of the nuclear chart that feature shape coexistence\, with the hypot hesized 0νββ-decay mother nucleus ¹⁵⁰Nd and its daughter ¹⁵⁰S m even being located in the region of a shape phase transition along their respective isotopic chains. In particular\, the occurrence of shape coexi stence may lead to a significant population of an excited 0⁺ state in 0 νββ decay. To improve 0νββ-NME calculations for ¹⁵⁰Nd and ¹⁵ ⁰Sm within the IBM-2 information on its so-called Majorana interaction i s needed. Therefore\, new data on the decay characteristics of the scissor s mode of these nuclei was recently taken in nuclear resonance fluorescenc e experiments performed at the High Intensity γ-ray Source. The decay cha racteristics of the scissors mode are sensitive to the nuclear deformation and allow inducing constraints on model parameters\, especially the Major ana parameters of the IBM-2\, in turn resulting in a more reliable predict ion of the 0νββ-NME. Similar information has also been obtained for the 0νββ-partner nuclides ⁸²Se and ⁸²Kr. The experimental results an d updated IBM-2 calculations will be presented and discussed.\n*Supported by the DFG through the research grant SFB 1245 and by the State of Hesse u nder the grant “Nuclear Photonics” within the LOEWE program.\n\nhttps: //indico.tlabs.ac.za/event/85/contributions/1486/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1486/ END:VEVENT BEGIN:VEVENT SUMMARY:Deflection of cosmic neutrino by a stellar magnetic field DTSTART;VALUE=DATE-TIME:20200227T115000Z DTEND;VALUE=DATE-TIME:20200227T121000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1442@indico.tlabs.ac.za DESCRIPTION:Speakers: Mohamed Ismaiel (Helwan University)\nNeutrinos in t he Standard Model (SM) are considered neutral particles. However\, recent experiments showed that the neutrino has infinitesimal electric charge lea ds to non-zero magnetic moment (μ) with precise constraints on the value\ , this electromagnetic interaction contribution enhances neutrino properti es i.e. Oscillation\, Scattering\, and Spin. This work discusses the possi ble neutrino deflection under the influence of Interstellar Magnetic Field (IMF) or at extreme magnetic field condition exists in celestial objects\ , and for what limit could affect the neutrino flux measured at Earth. The primary results were validated by SN1987A supernovae arrival time data.\n \nhttps://indico.tlabs.ac.za/event/85/contributions/1442/ LOCATION:Parallel Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1442/ END:VEVENT BEGIN:VEVENT SUMMARY:Recent results and perspectives on beta decay\, double beta decay and lepton flavour violation DTSTART;VALUE=DATE-TIME:20200224T070000Z DTEND;VALUE=DATE-TIME:20200224T073000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1519@indico.tlabs.ac.za DESCRIPTION:Speakers: Kai Zuber (Technical University Dresden)\nThe lepton sector of the Standard Model is a very important and interesting field to search for new physics beyond the standard model. As we know that quarks and neutrinos are mixing it is an open question why the charged leptons ar e now. This stimulates the search for charge lepton violation (CLFV). In a ddition\, neutrino-less double beta decay would violate total lepton numbe r by 2 and prove that neutrinos are their own antiparticle. The obtained h alf-life can be linked to a potential Majorana neutrino mass. This is prov iding a complementary measurement to normal beta decay where new interesti ng results are obtained.\nThis talk will shortly review the current situat ion in this area of research\, required support from theory and an outlook into the future.\n\nhttps://indico.tlabs.ac.za/event/85/contributions/151 9/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1519/ END:VEVENT BEGIN:VEVENT SUMMARY:The Electron Capture in $^{163}$Ho experiment\, ECHo DTSTART;VALUE=DATE-TIME:20200225T080000Z DTEND;VALUE=DATE-TIME:20200225T083000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1495@indico.tlabs.ac.za DESCRIPTION:Speakers: Christian Enss for the ECHo Collaboration (Kirchhoff Institute for Physics)\nThe goal of the Electron Capture in $^{163}$Ho (E CHo) experiment is the determination of the electron neutrino mass by the analysis of the electron capture spectrum of $^{163}$Ho. The detector tech nology is based on metallic magnetic calorimeters operated at a temperatur e of about 10 mK in a reduced background environment. For the first phase of the experiment\, ECHo-1k\, the detector production has been optimized a nd the implantation process of high purity $^{163}$Ho source in large dete ctor arrays has been refined. The implanted detectors have been successful ly operated and characterized at low temperatures\, reaching an energy res olution below 5 eV. High statistics and high resolution $^{163}$Ho spectra have been acquired and analyzed in the light of the recent advanced theor etical description of the spectral shape\, considering the independently d etermined and more precise value of the energy available to the electron c apture process\, $Q_{\\rm EC}$. We present preliminary results obtained in ECHo-1k so far and discuss the necessary upgrades towards the second phas e of the experiment\, ECHo-100k.\n\nhttps://indico.tlabs.ac.za/event/85/co ntributions/1495/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1495/ END:VEVENT BEGIN:VEVENT SUMMARY:Prospects for pair-transfer reactions at iThemba LABS DTSTART;VALUE=DATE-TIME:20200225T124000Z DTEND;VALUE=DATE-TIME:20200225T130000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1443@indico.tlabs.ac.za DESCRIPTION:Speakers: Philip Adsley (iThemba LABS/Wits)\nPair-transfer rea ctions such as (p\,t) and (3He\,n) have been used to probe the pairing in nuclei. The nature of pairing in neutrinoless double-beta decay candidates can strongly impact the predicted nuclear matrix elements linking the gro und states of the parent and daughter nuclei in neutrinoless double-beta d ecay candidates\, with various different theoretical approaches such as th e QRPA sometimes using the BCS pairing approximation. Evidence from pair-t ransfer reactions provides evidence for the breaking down of the BCS appro ximation in some nuclei.\n\nThis contribution will discuss experimental de velopments at iThemba LABS using the K600 magnetic spectrometer to measure (p\,t) cross sections\, and arrays of HPGe and neutron detectors to measu re the (3He\,n) reaction\, providing an excellent opportunity to probe the nature of pairing in nuclei\, including neutrinoless double-beta decay ca ndidates.\n\nhttps://indico.tlabs.ac.za/event/85/contributions/1443/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1443/ END:VEVENT BEGIN:VEVENT SUMMARY:Calculation of the neutrino-nuclear reaction cross-sections for 𝑮𝒆𝟕𝟔 nuclei and estimation of the solar neutrino background in the GERDA/LEGEND experiments. DTSTART;VALUE=DATE-TIME:20200228T074000Z DTEND;VALUE=DATE-TIME:20200228T080000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1555@indico.tlabs.ac.za DESCRIPTION:Speakers: Andrei Vyborov (Moscow Institute of Physics and Tech nology)\nThe work presents calculations of the neutrino-nuclear reaction c ross-sections using the\nexample of the nucleus 𝐺𝑒'( (𝐺𝑒'( 𝜈*\, 𝑒 𝐴𝑠'( ). In the structure of the nucleus\, not only\ndis crete\, but also continuous states formed due to the collective interactio n of nucleons were\ndistinguished. In particular\, the contribution of the Giant Gamow-Teller resonance and so-called\npygmy resonances in the captu re rate of solar neutrinos was estimated (an increase of 25% to\n50%\, dep ending on the quenching parameter used).\nBased on the obtained capture ra te\, a Monte Carlo simulation of the subsequent beta\ndecay of the nucleus 𝐴𝑠'( (𝐴𝑠'( → 𝑆𝑒'( + 𝑒2 + 𝜈* + 𝑛𝛾) was car ried out for germanium\ndetectors in the GERDA experiment. Thus\, the cont ribution of the background component due\nto solar neutrinos was estimated \, which\, due to the small cross-sections of neutrino-nuclear\nreactions\ , is practically unremovable\, imposing confines on the sensitivity limit of the setup.\nA similar assessment can be made for the upcoming LEGEND ex periment taking into\naccount its geometry. Preliminary results suggest th at BI of solar neutrinos are 1-2 orders of\nmagnitude lower than the predi cted accuracy of the LEGEND experiment.\n\nhttps://indico.tlabs.ac.za/even t/85/contributions/1555/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1555/ END:VEVENT BEGIN:VEVENT SUMMARY:Hunting Down Solar Neutrinos\; an Extraordinary South African Part icle Physics Safari. DTSTART;VALUE=DATE-TIME:20200225T063000Z DTEND;VALUE=DATE-TIME:20200225T070000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1520@indico.tlabs.ac.za DESCRIPTION:Speakers: Elias Sideras-Haddad (WITS UNIVERSITY)\nThe detectio n of the neutrino and subsequently the solar neutrino had stood for over 2 5 years as a major challenge for nuclear physicists. The presentation is a narrative of the ground-breaking experiment of the joint South African a nd American teams of JPF Sellschop and F. Reines for the search of cosmic ray neutrino in the early sixties. The Case Western-Wits team operated a g igantic for its time liquid scintillator detector at an unbelievable dept h of almost 3\,5 Km undergound in the East Rand Proprietary Gold Mine (EPR M) in Johannesburg. After six years of preparations and operation the firs t evidence of high-energy cosmic ray neutrino interactions was published i n 1965 in Physical Review Letters. This achievement was the determining fa ctor for the career of JPF Sellschop and in certain respects for the devel opment of Nuclear Physics in South Africa.\n\nhttps://indico.tlabs.ac.za/e vent/85/contributions/1520/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1520/ END:VEVENT BEGIN:VEVENT SUMMARY:Enlightening the dark with XENON1T and looking forward to XENONnT DTSTART;VALUE=DATE-TIME:20200224T130000Z DTEND;VALUE=DATE-TIME:20200224T132000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1518@indico.tlabs.ac.za DESCRIPTION:Speakers: Christian Wittweg ()\nThe most recent results of the XENON1T direct dark matter detector will be presented. XENON1T was a two- phase xenon TPC using 248 low radioactivity PMTs to detect scintillation s ignals in a 2-ton active liquid xenon target. The detector was operational between 2016 and 2018 at the Laboratori Nazionale del Gran Sasso with con tinuously improving xenon purity and reduction of the internal Kr-85 backg round source. In addition to WIMP searches\, XENON1T also produced importa nt results on nuclear processes\, such as the double electron capture of 1 24Xe\, and is sensitive to flavour independent measurements of solar and s upernova neutrinos. The status of the successor experiment\, XENONnT will be discussed\, as well as projections for WIMP and neutrinoless double be ta decay searches.\n\nhttps://indico.tlabs.ac.za/event/85/contributions/15 18/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1518/ END:VEVENT BEGIN:VEVENT SUMMARY:First-forbidden transitions in the reactor antineutrino ux and sp ectral anomalies DTSTART;VALUE=DATE-TIME:20200226T070000Z DTEND;VALUE=DATE-TIME:20200226T073000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1507@indico.tlabs.ac.za DESCRIPTION:Speakers: Leendert Hayen (North Carolina State University & Tr iangle Universities Nuclear Laboratory)\nIt has been almost a decade since the reactor antineutrino anomaly entered the stage\, where the number of experimentally detected antineutrinos emerging from a nuclear power reacto r interior was signicantly less than theoretically predicted from nuclear decay. This has\, in turn\, motivated the search for an eV-scale sterile neutrino in several very short baseline experiments\, none of which have s o far confirmed its existence. From the theory point of view\, initial ana lyses introduced a signicant number of approximations\, in particular for the treatment of so-called forbidden transitions. We report on the first l arge-scale calculation of the influence of first-forbidden transitions usi ng state-of-the-art nuclear shell model calculations for a select number o f highly-contributing branches. We use these results to propose a probabi lity distribution for first-forbidden spectral shapes and employ Monte Car lo techniques to translate this into a detailed construction of theoretica l uncertainties for the remaining forbidden transitions. We observed signi cant changes in both the integrated \nux and spectral shape of the cumulat ive antineutrino spectra spectra for all ssion actinides [1\, 2]\, and dis cuss both a mitigation of the so-called reactor shoulder and changes in th e reactor antineutrino anomaly. Finally\, we will comment how an improved treatment of allowed transitions [2\, 3] can further signicantly change b oth ux and spectral shape.\n[1] L. Hayen\, J. Kostensalo\, N. Severijns\, and J. Suhonen\, Physical Review C 99\, 031301(R) (2019).\n[2] L. Hayen\, J. Kostensalo\, N. Severijns\, and J. Suhonen\, Physical Review C 100\, 05 4323 (2019)\, arXiv:1805.12259.\n[3] L. Hayen\, N. Severijns\, K. Bodek\, D. Rozpedzik\, and X. Mougeot\, Reviews of Modern Physics 90\, 015008 (201 8)\,\narXiv:1709.07530.\n\nhttps://indico.tlabs.ac.za/event/85/contributio ns/1507/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1507/ END:VEVENT BEGIN:VEVENT SUMMARY:ReD: a SiPM based LAr TPC for directionality studies DTSTART;VALUE=DATE-TIME:20200224T132000Z DTEND;VALUE=DATE-TIME:20200224T134000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1469@indico.tlabs.ac.za DESCRIPTION:Speakers: Luciano Pandola (INFN - Laboratori Nazionali del Sud )\nThe Recoil Directionality project (ReD) within the DarkSide Collaborati on aims to characterize the light and charge response of a liquid argon (L Ar) dual-phase Time Projection Chamber (TPC) to neutron-induced nuclear re coils. The main goal of the project is to probe for the possible direction al dependence suggested by the SCENE experiment. Furthermore\, ReD will ha ve the possibility to study the response of a LAr TPC to very low-energy n uclear recoils. Sensitivity to directionality and to low-energy recoils ar e both key assets for future argon-based experiments looking for Dark Matt er in the form of WIMPs.\n\nReD consists in the irradiation of a miniaturi zed LAr TPC with a neutron beam at the INFN\, Laboratori Nazionali del Sud (LNS)\, Catania. Neutrons are produced via the reaction p($^7$Li\,$^7$Be) n from a primary $^7$Li beam delivered by the TANDEM accelerator of LNS. A $\\Delta$E/E telescope\, made by two Si detectors\, identifies the charge d particles ($^7$Be) which accompany the neutrons emitted towards the TPC. The core detector of ReD is a small custom-made double phase LAr TPC\, ha ving sensitive volume of 5×5×5 cm$^3$. The ReD TPC uses all the innovati ve features of the DarkSide-20k design: in particular the optoelectronic r eadout based on SiPM and the cryogenic electronics. It is thus a valuable test bench of the technology which is being developed for DarkSide-20k and for the future project Argo. Neutrons scattered from the TPC are eventual ly detected by using an array of nine 3-inch liquid scintillator (LSci) de tectors. All LSci are placed such to tag recoils having the same energy\, i.e. the same scattering angle with respect to the incident neutron\, but different angle with respect to the drift field of the LAr TPC\, thus allo wing to search for a possible directional response. \nThe integration of t he three detector systems was performed within several test beams performe d in 2018-2019\, using the TANDEM accelerator of LNS. Neutrons were produc ed by sending a $^7$Li 28 MeV beam onto a set of CH$_2$ targets having thi ckness between 250 and 400 $\\mu$g/cm$^2$. \n\nThe physics measurement is expected to take place during the early months of 2020. This contribution will report about the current status of the project\, including the physic s results possibly obtained in the meanwhile\, and on the short- and mediu m-term plans. The feasibility is also discussed of a wider-purpose facilit y at INFN-LNS\, targeted to the calibration of detectors of interest for D ark Matter or rare events searches with tagged neutrons.\n\nhttps://indico .tlabs.ac.za/event/85/contributions/1469/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1469/ END:VEVENT BEGIN:VEVENT SUMMARY:Roles of Neutrinos in Explosive Nucleosynthesis of Supernovae and Neutron-Star Mergers and Cosmic Evolution DTSTART;VALUE=DATE-TIME:20200226T063000Z DTEND;VALUE=DATE-TIME:20200226T070000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1516@indico.tlabs.ac.za DESCRIPTION:Speakers: Taka Kajino (Being University/NAOJ/University of Tok yo)\nThe big-bang universe\, supernovae (SNe)\, collapsars and binary neut ron-star mergers (NSMs) are the viable celestial sources of “multi-messe ngers”. These messengers are neutrinos for weak force\, gravitational wa ves for gravity\, photons for electromagnetism\, and atomic nuclei for str ong nuclear force [1]. Their detection takes the keys to solve still unans wered questions such as mass hierarchy of neutrinos [2]\, overproduction o f big-bang lithium [3]\, the origin of p-nuclei [4]\, and the origin of r- process elements [1\,5]. We will discuss the roles of neutrinos and radioa ctive nuclei for solving these problems.\nStill unknown neutrino mass and oscillations are particularly important to answer the fundamental question why we need to go beyond the standard theory of elementary particles and fields. We will\, first\, discuss cosmological background neutrinos and fl uctuations of primordial magnetic fields in order to solve overproduction problem of primordial big-bang lithium [3]. The relic SN neutrinos also ar e the energetic component of cosmic background neutrinos. We will propose a method how to constrain the neutrino mass hierarchy and EOS of proto-neu tron stars in the proposed HK project of detecting these energetic neutrin os [6].\nA huge flux of neutrinos is emitted from proto-neutron stars or a ccretion disks formed in SNe\, collapsars and binary NSMs. The collective flavor oscillation due to the neutrino self-interactions is presumed to oc cur in the deepest region inside the iron-core\, while the MSW high-densit y resonance occurs near the bottom of He/C-layer. The light mass nuclei\, 7Li and 11B\, and the intermediate-to-heavy mass nuclei\, 19F\, 50V\, 53Mn \, 92Nb\, 98Tc\, 138La and 180Ta\, are respectively produced in outer He/C -layer and inner O-Ne-Mg-layer exposed to the intense neutrino flux (-p rocess) [2]. The intermediate mass p-nuclei\, 74Se\, 78Kr\, 84Sr\, 74Se\, 92\,94Mo and 96\,98Ru (p-process) [4]\, and r-process nuclei [1] are pr oduced in the iron-core. Therefore\, nucleosynthesis of 7Li and 11B is aff ected by both collective and MSW effects\, however all the other intermedi ate-to-heavy mass nuclei are affected by the collective oscillation alone\ , being almost free from MSW effect. We will\, secondly\, discuss how diff erently these nucleosynthetic products depend on each of collective or MSW neutrino oscillation effect\, and will propose how to distinguish these t wo effects from each other [2].\nFinally\, we will discuss the origin of r -process nucleosynthesis to understand the cosmic evolutionary history of each contribution from SN\, collapsar and binary NSM [5]. We here discuss the roles of GW detection and spectroscopic astronomical observation of at omic nuclei as well as nuclear experiments of radioactive nuclei [1].\n\nh ttps://indico.tlabs.ac.za/event/85/contributions/1516/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1516/ END:VEVENT BEGIN:VEVENT SUMMARY:- DTSTART;VALUE=DATE-TIME:20200224T132000Z DTEND;VALUE=DATE-TIME:20200224T134000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1604@indico.tlabs.ac.za DESCRIPTION:https://indico.tlabs.ac.za/event/85/contributions/1604/ LOCATION:Parallel Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1604/ END:VEVENT BEGIN:VEVENT SUMMARY:First results from the neutrino mass experiment KATRIN DTSTART;VALUE=DATE-TIME:20200225T070000Z DTEND;VALUE=DATE-TIME:20200225T073000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1501@indico.tlabs.ac.za DESCRIPTION:Speakers: Christian Weinheimer (Institut für Kernphysik\, Uni versity of Münster\, Germany)\nSince the discovery of neutrino oscillatio n we know that neutrinos have non-zero masses\, but we still do not know t he absolute neutrino mass scale\, which is as important for cosmology as f or particle physics. The direct search for a non-zero neutrino mass from e ndpoint spectra of weak decays is complementary to the search for neutrino less double beta-decay and analyses of cosmological data.\nToday the most stringent direct limits on the neutrino mass originate from investigations of the electron energy spectra of tritium beta-decay.\n\nThe next generat ion experiment KATRIN\, the Karlsruhe Tritium Neutrino experiment\, is imp roving the sensitivity from the tritium beta decay experiments at Mainz an d Troitsk of 2 eV by one order of magnitude probing the region relevant fo r structure formation in the universe. KATRIN uses a strong windowless gas eous molecular tritium source combined with a huge MAC-E-Filter as electro n spectrometer. To achieve the sensitivity\, KATRIN has been putting many technologies at their limits. The full 70m long setup has been successfull y commissioned. From early 2019 on KATRIN is taking high statistics tritiu m data hunting for the neutrino mass.\n\nIn this talk a detailed presentat ion of the KATRIN experiment and its results from the first KATRIN science run will be given. The new results are already bringing KATRIN into the l ead position of the field. In the outlook the perspectives of KATRIN for t he coming years and new technologies to potentially improve further the se nsitivity on the neutino mass will be presented.\n\nhttps://indico.tlabs.a c.za/event/85/contributions/1501/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1501/ END:VEVENT BEGIN:VEVENT SUMMARY:Study of kinematic factors in double-beta decay DTSTART;VALUE=DATE-TIME:20200228T102000Z DTEND;VALUE=DATE-TIME:20200228T105000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1488@indico.tlabs.ac.za DESCRIPTION:Speakers: Sabin Stoica (International Centre for Advanced Trai ning and Research in Physics)\nS. Stoica\,\nInternational Centre for Advan ced Training and Research in Physics and \nHoria Hulubei National Institut e of Physics and Nuclear Engineering\, \nP.O. Box MG12\, 077125 Bucharest- Magurele\, Romania\n\nUntil the recent past not to much importance was giv en to the kinematic factors related to the double-beta decay\, i.e. the ph ase space factors\, electronic spectra and angular correlations between th e emitted electrons. The reason was largely because on the one side they w ere considered to be calculated/predicted with enough precision (in compar ison for example with the nuclear matrix elements) and\, on the other side \, the experimental measurements had not reached a sufficient degree of ac curacy to be able to distinguish fine details of them. This situation is c hanging now. A detailed analysis of the DBD electron spectra and angular c orrelations can provide us with useful information on transitions to excit ed states\, on decay modes and mechanisms contributing to neutrinoless DBD and\, very recently on possible effects of Lorentz symmetry violation in the neutrino sector. \nIn my presentation I will give first a short review about the challenges in computation of the space phase factors\, electron spectra and electron angular correlations. Then\, I refer to the analysis of observable effects of Lorentz violation (LV) in two-neutrino DBD in th e framework of the Standard Model Extension (SME) and I present a comparis on between the methods of calculation the summed electron spectra includin g the deviations due to LV associated to the like-time component of the s o-called countershaded operator.\nFinally\, I show that our predictions re garding electronic spectra correlated with their precise measurements that are currently being done in DBD experiments (like EXO-2000\, SuperNEMO\, etc.) for searching LV effects\, can improve with up to 30% the actual upp er limits of the (ä)3of coefficient that governs the LV contribution. \n\nReferences\nJ. S. Diaz\, Phys. Rev. D 89\, 036002 (2014).\nJ. Kotila and F. Iachello\, Phys. Rev. C 85\, 034314 (2012).\nS. Stoica and M. Mire a\, Phys. Rev. C88\, 037303 (2013). \nM. Mirea\, T. Pahomi\, and S. Stoica \, Rom. Rep. Phys.67\, 872 (2015).\nS. Stoica\, MEDEX’19\, Prague\, May 28\, 2019.\nS. Stoica and M. Mirea\, Phase space factors for double-beta d ecay\, Frontiers in Physics\, ID 436288\, 2019.\n\nhttps://indico.tlabs.ac .za/event/85/contributions/1488/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1488/ END:VEVENT BEGIN:VEVENT SUMMARY:Implications of new theoretical calculations on reactor antineutri no and gallium anomalies DTSTART;VALUE=DATE-TIME:20200228T072000Z DTEND;VALUE=DATE-TIME:20200228T074000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1446@indico.tlabs.ac.za DESCRIPTION:Speakers: Joel Kostensalo (University of Jyvaskyla\, Finland)\ nThe reactor antineutrino and gallium anomalies have been long unexplained . Possible explanations for both of these anomalies include new physics\, such as the existence of one or more eV-scale sterile neutrino [Ga15]. How ever\, the previous theoretical calculations\, which do not replicate the experimental results\, rely on many simplifying approximations [Ba97\,Ha19 ].\n\n\nIn the reactor-antineutrino analysis the beta decays contributing to the cumulative electron spectrum are usually assumed to have allowed sp ectral shapes. However\, many of these decays are actually first-forbidden . Moreover\, these decays dominate the experimentally observable region. I n some cases\, like in the case of the ground-state-to-ground-state decay of $^{140}\\rm Cs$ (see figure)\, this is found to be a rather poor approx imation. Based on the recent results\, the use of this allowed approximati on can at least partially explain the so called reactor antineurtino anoma ly.\n\nOur new large-scale shell model calculations regarding the neutrino -nucleus scattering cross section off $^{71}\\rm Ga$ shows no statistical difference to the experimental results of GALLEX and SAGE experiments. Con flict between charge-exchange BGTs and the neutrino-nucleus cross sections can to some extent be explained by destructive interference between Gamow -Teller and tensor contributions. A Bayesian approach to estimating the si gnificance of the gallium anomaly is discussed.\n\n![Allowed and forbidden spectral shapes for 140Cs.][1]\n\n\n[Ga15] S. Gariazzo\, C. Giunti\, M. L aveder\, Y. F. Li\, and\nE. M. Zavanin\, J. Phys. G: Nucl. Part. Phys. 43\ , 033001\n(2015).\n\n[Ba97] J. N. Bahcall Phys. Rev. C 56\, 3391 (1997).\n \n[Ha19] L. Hayen\, J. Kostensalo\, N. Severijns\, and J. Suhonen\nPhys. R ev. C 99\, 031301(R) (2019).\n\n\n [1]: https://ibb.co/QvQmNWQ\n\nhttps:/ /indico.tlabs.ac.za/event/85/contributions/1446/ LOCATION:Parallel Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1446/ END:VEVENT BEGIN:VEVENT SUMMARY:Q-value measurements of rare weak beta decays with JYFLTRAP DTSTART;VALUE=DATE-TIME:20200225T130000Z DTEND;VALUE=DATE-TIME:20200225T132000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1458@indico.tlabs.ac.za DESCRIPTION:Speakers: Tommi Eronen (University of Jyväskylä)\nRare weak beta decays can be potentially used in searches for the neutrino mass. The se are\, *e.g.*\, decays between nuclear ground states and excited states in daughter nuclei that have very small (< 1 keV) decay energy ($Q$-value ). The beta decay of $^{115}$In $9/2^+$ ground state to $3/2^+$ state in $ ^{115}$Sn currently has the smallest measured $Q$-value (0.155(24) keV [1\ ,2]) of any beta decay. \n\nThere are several more nuclei that potentially possess similarly low $Q$-values [3]. Those are optimal for experimental neutrino mass determination through distortions in the beta endpoint spect rum. First\, before any attempt to measure the endpoint spectrum\, it is n ecessary to confirm whether the $Q$-value of the decay is positive. The gr ound-state-to-ground state $Q$-value can be measured with mass spectrometr y while the excitation energy of the excited state in the daughter can be deduced from gamma-ray spectroscopy.\nUsing the JYFLTRAP Penning trap setu p [4\,5] at the Accelerator Laboratory of the University of Jyväskylä\, we have measured $Q$-values of several such cases. One of those is the $^{ 135}$Cs decay to $^{135}$Ba\, which was measured with a precision at the 1 00-eV level. Along with this Q-value measurement I’ll give an overview o f the used Phase-Imaging Ion-Cyclotron mass measurement technique [6].\n\n [1] B.J. Mount\, M. Redshaw\, E.G. Myers\, Phys. Rev. Lett. **103**\, 1225 02 (2009).\n[2] J. S. E. Wieslander\, J. Suhonen\, T. Eronen et al.\, Phys . Rev. Lett. **103**\, 122501 (2009).\n[3] H. Ejiri\, J. Suhonen\, K. Zube r\, Phys. Rep. **797**\, 1-102 (2019).\n[4] T. Eronen et al.\, Eur. Phys. J. A **48**\, 46 (2012).\n[5] D. Nesterenko et al.\, Eur. Phys. J. A **54* *\, 154 (2018).\n[6] S. Eliseev et al.\, Appl. Phys. B **114**\, 107 (2014 ).\n\nhttps://indico.tlabs.ac.za/event/85/contributions/1458/ LOCATION:Parallel Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1458/ END:VEVENT BEGIN:VEVENT SUMMARY:Dark Matter searches at Belle II DTSTART;VALUE=DATE-TIME:20200224T120000Z DTEND;VALUE=DATE-TIME:20200224T122000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1451@indico.tlabs.ac.za DESCRIPTION:Speakers: Marcello Campajola (INFN-Napoli)\nThe Belle II exper iment at the SuperKEKB energy-asymmetric $e^+ e^-$ collider is a substanti al upgrade of the B factory facility at the Japanese KEK laboratory. The d esign luminosity of the machine is $8\\times 10^{35}$ cm$^{-2}$s$^{-1}$ an d the Belle II experiment aims to record 50 ab$^{-1}$ of data\, a factor o f 50 more than its predecessor. Main operation of SuperKEKB has started in March 2019\, with the full detector installed\; this first running period ended in July. The machine reached a peak luminosity of $1.2\\times 10^{3 4}$ cm$^{-2}$s$^{-1}$\, and Belle II recorded a data sample of about 6.5 fb$^{-1}$. Data taking will resume in October 2019. Already this early dat a set\, with specifically designed triggers\, offers the possibility to se arch for a large variety of dark sector particles in the GeV mass range\, complementary to LHC and to dedicated low energy experiments\; these searc hes will benefit from more data which will be accumulated in the upcoming Fall/Winter run. This talk will review the state of the dark sector search es at Belle II with a focus on the discovery potential of the early data\, and show the first results\n\nhttps://indico.tlabs.ac.za/event/85/contrib utions/1451/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1451/ END:VEVENT BEGIN:VEVENT SUMMARY:Results and future perspectives of Borexino DTSTART;VALUE=DATE-TIME:20200227T141000Z DTEND;VALUE=DATE-TIME:20200227T144000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1494@indico.tlabs.ac.za DESCRIPTION:Speakers: Alessio Caminata (INFN Genoa)\nThe Borexino liquid s cintillator neutrino observatory is devoted to perform high-precision neut rino observations: the study of solar neutrinos is the primary goal of the experiment. The exceptional radiopurity together with the good energy res olution (5% at 1 MeV) put Borexino in the unique situation of being able t o validate the MSW-LMA oscillation paradigm across the full solar energy r ange. A comprehensive study of the pp-chain neutrinos was recently releas ed: this new study reports the direct measurements of pp\, 7Be and pep ne utrino fluxes with the highest precision ever achieved (down to ~2.8% in t he 7Be component)\, the 8B with the lowest energy threshold\, the best li mit on CNO neutrinos and the first Borexino limit on hep neutrinos. The pr esent talk shows the new results based on the full 10 years data sample an d\, in particular\, on the more radiopure Phase-2 data\, taken after the d etector purification campaigns in 2010-11 and the perspectives for the fin al stage of the solar program. The talk will be concluded reporting the la test news on the detection of geoneutrinos with Borexino and the analysis techniques applied.\n\nhttps://indico.tlabs.ac.za/event/85/contributions/1 494/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1494/ END:VEVENT BEGIN:VEVENT SUMMARY:Sterile neutrino searches with the ICARUS detector DTSTART;VALUE=DATE-TIME:20200227T115000Z DTEND;VALUE=DATE-TIME:20200227T121000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1455@indico.tlabs.ac.za DESCRIPTION:Speakers: Vincenzo Bellini (INFN/Catania)\nThe ICARUS collabor ation employed the 760-ton T600 detector in a successful three-year physic s run at the underground LNGS laboratories studying neutrino oscillations with the CNGS neutrino beam from CERN\, and searching for atmospheric neut rino interactions. ICARUS performed a sensitive search for LSND-like anoma lous $\\nu_e$ appearance in the CNGS beam\, which contributed to the const raints on the allowed parameters to a narrow region around 1 eV$^2$\, wher e all the experimental results can be coherently accommodated at 90% C.L. After a significant overhauling at CERN\, the T600 detector has now been p laced in its experimental hall at Fermilab where installation activities a re in progress. It will be soon exposed to the Booster Neutrino Beam to se arch for a sterile neutrino within the Short Baseline Neutrino (SBN) progr am\, devoted to definitively clarify the open questions of the presently o bserved neutrino anomalies. The proposed contribution will address ICARUS achievements\, its status and plans for the new run at Fermilab and the on going developments of the analysis tools needed to fulfill its physics pro gram.\n\nhttps://indico.tlabs.ac.za/event/85/contributions/1455/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1455/ END:VEVENT BEGIN:VEVENT SUMMARY:CUPID-0: a double-readout cryogenic detector for DBD DTSTART;VALUE=DATE-TIME:20200224T122000Z DTEND;VALUE=DATE-TIME:20200224T124000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1449@indico.tlabs.ac.za DESCRIPTION:Speakers: Lorenzo Pagnanini ()\nA convincing observation of ne utrino-less double beta decay (0𝜈DBD) relies on the possibility of oper ating high-energy resolution detectors in background-free conditions.\nSci ntillating cryogenic calorimeters are one of the most promising tools to f ulfill the requirements for a next-generation experiment. Several steps ha ve been taken to demonstrate the maturity of this technique\, starting for m the successful experience of CUPID-0.\nThe CUPID-0 experiment demonstrat ed the complete rejection of the dominant alpha background measuring the l owest counting rate in the region of interest for this technique. Furtherm ore\, the most stringent limit on the Se-82 0𝜈DBD was established runni ng 26 ZnSe crystals during two years of continuous detector operation.\nIn this contribution we present the final results of CUPID-0 Phase I includi ng a detailed model of the background\, the measurement of the 2𝜈DBD ha lf-life and the evidence that this nuclear transition is single state domi nated. The first results obtained after the upgrade of the detector in 201 9 are presented as well.\n\nhttps://indico.tlabs.ac.za/event/85/contributi ons/1449/ LOCATION:Main Venue and Parallel Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1449/ END:VEVENT BEGIN:VEVENT SUMMARY:Nuclear processes and effective weak couplings DTSTART;VALUE=DATE-TIME:20200224T073000Z DTEND;VALUE=DATE-TIME:20200224T080000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1499@indico.tlabs.ac.za DESCRIPTION:Speakers: Jouni Suhonen (University of Jyväskylä)\nThe axial -type of weak couplings seem to be renormalized in medium-heavy and heavy nuclei as suggested by analyses of nuclear beta and double beta decays\, n uclear muon capture\, charge-exchange reactions and low-energy neutrino-nu cleus scattering [1]. Also some calculations suggest that also the vector- type of couplings could attain effective values in nuclei [2\,3]. The poss ible variation of the values of weak couplings as functions of the nuclear mass number affects the information deduced from the possible future meas urements of the half-lives of neutrinoless double beta ($0\\nu\\beta\\beta $) decays [4]\,\nnuclear muon captures\, electron and antineutrino spectra of medium-mass fission fragments in nuclear reactors\, etc. In particular \, there could be direct effects on the reactor antineutrino anomaly and t he Gallium anomaly [1]. \n\nStudies of the $0\\nu\\beta\\beta$ decays of n uclei are of paramount importance in order to learn about the basic proper ties of the neutrino. An appealing way to probe this decay rather directly is the nuclear muon capture\, since it operates in the same momentum-exch ange region as the $0\\nu\\beta\\beta$ decays. Recent results on the muon capture rate on $^{100}$Mo [5] indicate that the muon-capture calculations are able to reproduce the measured capture strength function in a quite s atisfactory way. \n\nIn my contribution I present an overview of the probl em of effective weak couplings and discuss the relation of the nuclear muo n capture to $0\\nu\\beta\\beta$ processes.\n\n*** REFERENCES *** \n\n[1] H. Ejiri\, J. Suhonen and K. Zuber\, Neutrino-nuclear responses for astro-neutrinos\,\nsingle beta deca ys and double beta decays\, Phys. Rep. 797 (2019) 1-102. \n[2] J. Suhonen\ , Value of the axial-vector coupling strength in $\\beta$ and $\\beta\\bet a$ decays: A review\, Front. Phys. 5 (2017) 55. \n[3] J. Suhonen and J. Ko stensalo\, Double $\\beta$ decay and the axial strength\, Front. Phys. 7 ( 2019) 29. \n[4] J. Suhonen\, Impact of the quenching of $g_{\\rm A}$ on th e sensitivity of \n$0\\nu\\beta\\beta$ experiments\, Phys. Rev. C 96 (2017 ) 055501. \n[5] L. Jokiniemi\, J. Suhonen\, H. Ejiri and I. H. Hashim\, Pi nning down the strength\nfunction for ordinary muon capture on $^{100}$Mo\ , Phys. Lett. B 794 (2019) 143-147.\n\nhttps://indico.tlabs.ac.za/event/85 /contributions/1499/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1499/ END:VEVENT BEGIN:VEVENT SUMMARY:HALO-1kT - Status and Design DTSTART;VALUE=DATE-TIME:20200224T144000Z DTEND;VALUE=DATE-TIME:20200224T151000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1496@indico.tlabs.ac.za DESCRIPTION:Speakers: Clarence Virtue (Laurentian University / SNOLAB)\nHA LO-1kT is a lead-based supernova neutrino detector proposed for the Labora tori Nazionali del Gran Sasso (LNGS). By utilizing lead from the decommiss ioning of the OPERA detector at LNGS\, HALO-1kT will improve of the sensit ivity of the Helium and Lead Observatory (HALO)\, that has been running in SNOLAB in Canada for the past 7 years\, by a factor of ~25. The lead-base d neutrino detection technology takes advantage of the large neutrino-nucl ear cross sections for lead\, and Pauli-blocking of the anti-electron-neut rino charged current channel\, to offer a robust\, low cost and low mainte nance electron-neutrino-sensitive detector that complements water Cherenko v and liquid scintillator neutrino detectors. Neutrino detection is throug h charged and neutral current interactions with the lead nuclei that expel neutrinos that a subsequently detected with high efficiency in Helium-3 p roportional counters. The talk will focus on the physics capabilities of t he detector\; aspects of its design\; and its current status.\n\nhttps://i ndico.tlabs.ac.za/event/85/contributions/1496/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1496/ END:VEVENT BEGIN:VEVENT SUMMARY:Heavy ion charge exchange reactions as probes for nuclear β-decay DTSTART;VALUE=DATE-TIME:20200227T093000Z DTEND;VALUE=DATE-TIME:20200227T100000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1490@indico.tlabs.ac.za DESCRIPTION:Speakers: Horst Lenske (U. Giessen)\nThe status and prospects of heavy ion charge exchange reactions are discussed. Their important role for nuclear reaction\, nuclear structure\, and beta-decay investigations is emphasized. Dealing with peripheral reactions\, direct reaction theory gives at hand the proper methods for single (SCE) and double charge exchan ge (DCE) ion–ion scattering. The microscopic descriptions of charge exch ange ion–ion residual interactions and the reaction mechanism are obtain ed by distorted wave theory. Ion–Ion optical potentials and reaction for m factors are determined in a folding approach by using NN T-matrices and microscopic ground state and transition densities\, respectively. The theo ry of onestep direct and two-step transfer reaction mechanisms for SCE rea ctions is discussed and illustrated in applications to data. Specific SCE reactions are discussed in detail\, emphasizing the versatility of project ile–target combinations and incident energies. SCE reactions induced by 12C and 7Li beams are presented as representative examples. Heavy ion DCE reactions are shown to proceed in principle either by sequential pair tran sfer or two kinds of collisional NN processes. Double single charge exchan ge (DSCE) is given by two consecutive SCE processes\, resembling in struct ure 2ν2β decay. A competing process is a two-nucleon mechanism\, relying on short range NN correlations and leading to the correlated exchange of two charged mesons between projectile and target. These Majorana DCE (MDCE ) events are of a similar diagrammatic structure as 0ν2β decay. The simi larities of the DSCE and MDCE processes to pionic DCE reactions are elucid ated. An overview on recent applications to heavy ion DCE data is given.\n \nhttps://indico.tlabs.ac.za/event/85/contributions/1490/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1490/ END:VEVENT BEGIN:VEVENT SUMMARY:DELight – Searching for light dark matter using superfluid heliu m DTSTART;VALUE=DATE-TIME:20200224T124000Z DTEND;VALUE=DATE-TIME:20200224T130000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1482@indico.tlabs.ac.za DESCRIPTION:Speakers: Christian Enss (Kirchhoff Institute for Physics\, He idelberg University)\nThe Direct search Experiment for Light Dark Matter ( DELight) aims to develop a novel detector technology for the search for li ght dark matter based on the properties of the superfluid phase of the ine rt gas 4He. This detector uses the purest material imaginable\, provides m ultiple independent signals for background suppression\, has the potential to exploit directionality for event identification\, and offers the abili ty to extend the sensitivity of direct dark matter search to the MeV range . In the first phase\, we will build a 10-liter prototype detector with me tallic magnetic calorimeters (MMCs) as photon and phonon sensors to invest igate the signal threshold that can be reliably detected and to study the directional dependence of the quantum evaporation of He atoms on the energ y and mass of the scattering particle. Here we will discuss the physics an d the potential of such a detector for light dark matter as well as the go als and long-term perspective of DELight.\n\nhttps://indico.tlabs.ac.za/ev ent/85/contributions/1482/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1482/ END:VEVENT BEGIN:VEVENT SUMMARY:EDELWEISS: searching for low-mass dark matter particles with germ anium low-temperature detectors DTSTART;VALUE=DATE-TIME:20200224T122000Z DTEND;VALUE=DATE-TIME:20200224T124000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1478@indico.tlabs.ac.za DESCRIPTION:Speakers: Andrea Giuliani (CNRS/CSNSM)\nEDELWEISS is a direct dark matter search experiment aiming at the detection of WIMPS and other c andidates as the composition of the galactic dark matter halo. The EDELWEI SS detection method is based on arrays of germanium mono-crystals operated at temperatures around or below 20 mK. Energy deposited in the crystals b y particle interactions are read out simultaneously by thermal sensors\, w hich collect the phonon component of the signal\, and by surface electrode s\, which collect the ionization component. This hybrid detection method i s extremely powerful for background reduction. The EDELWEISS devices are o perated in a low-radioactivity heavily-shielded dilution refrigerator inst alled in the deepest European underground laboratory in Modane (France). R ecently\, results have been achieved also with an extremely low-noise set up installed above ground.\nThe versatile and highly performing technology adopted by EDELWEISS opens new possibilities to detect signals induced by either electrons or nuclear recoils. EDELWEISS has developed a rich progr am to look for DM candidates with masses below 1 GeV and down to the MeV r ange (EDELWEISS SubGeV program)\, in a region of the parameter space where low-temperature detectors are extremely competitive. There is an increasi ng interest in this mass range motivated by the lack of evidence of new ph ysics at LHC (e.g. SUSY)\, which pushes to look beyond the standard WIMP d ark matter scenario\nDetectors are operated in two modes\, according to th e voltage magnitude applied to the ionization electrodes. In the low-volta ge mode\, discrimination between nuclear and electron recoils is maintaine d\, with threshold down to 50 eV (electron equivalent) in prospects. In th e high-voltage mode\, detection of single electron-hole pair in massive de tectors is possible.\nWe will report both on the promising technological a dvancements in these detection regimes and on recent results about low-mas s candidates. In particular\, we will present results on Axion-Like Partic les in the keV range and will report the attainment of the first sub-GeV s pin-independent dark matter limit based on a germanium target. The search has been extended to Strongly Interacting Particles (SIMP) down to masses of 45 MeV by exploiting the Migdal effect. Results on SIMPs with spin-depe ndent interactions will also be presented.\n\nhttps://indico.tlabs.ac.za/e vent/85/contributions/1478/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1478/ END:VEVENT BEGIN:VEVENT SUMMARY:Detection of supernova neutrino signal with NOvA detectors DTSTART;VALUE=DATE-TIME:20200227T121000Z DTEND;VALUE=DATE-TIME:20200227T123000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1472@indico.tlabs.ac.za DESCRIPTION:Speakers: Andrey Sheshukov (Joint Institute for Nuclear Resear ch)\nThe NOvA experiment has two segmented liquid scintillation detectors\ ,\nwhich are sensitive to the neutrino signal from a core-collapse\nsupern ova in our galaxy. Each of these detectors performs an online\nreconstruc tion and analysis of the neutrino interaction candidates\,\ncomparing thei r time distribution to that of the signals expected from a\ncore-collapse supernova. The statistical significance calculated in\nthis comparison is used to decide if a detector is currently observing a\nsupernova signal.\ n\nThe combination of these significance values from both detectors\nprovi des a more efficient metric for detecting the supernova signal\,\nincreasi ng the maximum distance at which NOvA can detect a core-collapse\nsupernov a.\n\nNOvA's approach for its combination of two detectors for supernova\n detection can be generalized to a network of various detectors with\ndiffe rent background levels and sensitivities.\n\nhttps://indico.tlabs.ac.za/ev ent/85/contributions/1472/ LOCATION:Parallel Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1472/ END:VEVENT BEGIN:VEVENT SUMMARY:The role of neutrino-nucleus reactions in supernova nucleosynthesi s DTSTART;VALUE=DATE-TIME:20200224T080000Z DTEND;VALUE=DATE-TIME:20200224T083000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1515@indico.tlabs.ac.za DESCRIPTION:Speakers: Karlheinz Langanke (GSI Darmstadt)\nNeutrinos play a n important role for the supernova dynamics and the \nassociated nucleosyn thesis. During collapse\, electron neutrinos\, produced \nby electron capt ure on nuclei\, dominate\, while all neutrino families are \nbeing produce d during the cooling phase of the protoneutron star.\n\nNeutrinos are cruc ial for the explosive nucleosynthesis. At first\, by \ninteraction with fr ee nucleons they determine the proton-to-neutron ratio \nof the ejected ma tter which is crucial for the subsequent \nnucleosynthesis. Modern superno va simulations indicate that the ejected \nmatter is not sufficiently neut ron rich to support an r-process which also \nproduces the solar abundance s in the third r-process peak.\n\nNeutrino-induced spallation reactions on abundant nuclei in the outer\nstellar shells are responsible for the prod uction of selected nuclides\n(neutrino nucleosynthesis). Recently the firs t study of neutrino \nnucleosynthesis has been presented which considers t he time-dependence\nof the neutrino emission including the neutrino burst\ , the accretion phase \nand the cooling phase as well as changes in the sp ectral forms of the \nneutrinos.\n\nhttps://indico.tlabs.ac.za/event/85/co ntributions/1515/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1515/ END:VEVENT BEGIN:VEVENT SUMMARY:EARTH\, a meeting of neutrino- and nuclear- physics. DTSTART;VALUE=DATE-TIME:20200225T130000Z DTEND;VALUE=DATE-TIME:20200225T132000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1479@indico.tlabs.ac.za DESCRIPTION:Speakers: Frederick Smit (NRF iThemba LABS\, Somerset West\, S outh Africa)\nOver the past 15 years\, in the consortium EARTH (Earth Anti neutRino TomograpHy)\, low energy experiments have been carried out with t he detection of antineutrinos as a theme. The ultimate goal was to learn m ore about the role of nuclear decay in the interior of the Earth [1-3]. Th is required developing direction sensitive antineutrino detection to detec t geoneutrinos. Here searching for remnants of possible nuclear reactions may also provide clues [4]. Other experiments were done into whether neutr inos from the Sun have a greater influence on radioactive decay than is co mmonly accepted by using antineutrinos from reactors as a surrogate to inv estigate these claims [5]. The work done on these unfinished projects will be reviewed and some ideas for future work will be given. \n\n[1] R.J. de Meijer et al.\, Earth\, Moon and Planets 99 (2006) 193\n[2] F.D. Smit et al.\, PoS (FNDA2006) 096\n[3] F.D. Brooks et al.\, AIP Conference Proceedi ngs 1412\, 177 (2011)\n[4] R.J. de Meijer et al.\, Radiation Physics and C hemistry 71 (2004) 769\n[5] R.J. de Meijer et al.\, Applied Radiation and Isotopes 69 (2011) 320\n\nhttps://indico.tlabs.ac.za/event/85/contribution s/1479/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1479/ END:VEVENT BEGIN:VEVENT SUMMARY:BBN\, Underground Nuclear Astrophysics and Neutrinos DTSTART;VALUE=DATE-TIME:20200225T122000Z DTEND;VALUE=DATE-TIME:20200225T124000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1465@indico.tlabs.ac.za DESCRIPTION:Speakers: Carlo Gustavino (INFN-Roma)\nNuclear astrophysics pl ays an important role in understanding open issues of neutrino physics. As an example\, the two key reactions of the solar p-p chain $^3He(^3He\,2p) ^4He$ and $^3He(^4He\,\\gamma)^7Be$ were studied at low energy with LUNA ( Laboratory for Underground Nuclear Astrophysics)\, providing an accurate e xperimental footing for the Standard Solar Model and consequently to study the neutrino mixing parameters. \nThe LUNA collaboration has now complete d the measurement of the $D(p\,\\gamma)^3He$ cross section with unpreceden ted precision at Big Bang Nucleosynthesis (BBN) energies. The accurate stu dy of this deuterium-burning process provides a precise determination of t he universal baryon density $\\Omega_b$\, in agreement with the value deri ved from CMB data and with comparable accuracy. \nFinally\, our analysis s everely constrains the possible existence of "dark radiation"\, i.e. the e xistence of relativistic particles not foreseen in the standard model\, su ch as sterile neutrinos or hot axions [1]. The LUNA result and consequence s in cosmology and particle physics are discussed in this contribution.\n\ n[1] E. Di Valentino\, C. Gustavino et al.\, Phys. Rev. D 90\, 023543 (201 4).\n\nhttps://indico.tlabs.ac.za/event/85/contributions/1465/ LOCATION:Parallel Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1465/ END:VEVENT BEGIN:VEVENT SUMMARY:Neutrino-induced reactions on $^{13}$C and $^{16}$O at supernova n eutrino energies DTSTART;VALUE=DATE-TIME:20200228T074000Z DTEND;VALUE=DATE-TIME:20200228T080000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1445@indico.tlabs.ac.za DESCRIPTION:Speakers: Toshio Suzuki (Nihon University)\nNeutrino-nucleus r eactions on $^{13}$C and $^{16}$O at supernova (SN) energies are investiga ted by shell-model calculations with the use of new Hamiltonian\, which ca n describe spin responses of nuclei quite well. Cabon-based scintillators and water-Cerenkov scintillators relevent to SN observation and experiment s at the spallation neutron sources are now available. Cross sections for various particle and $\\gamma$ emission channels are evaluated by the stat istical Hauser-Feshbach method.\n For $^{13}$C\, total reaction cross se ctions at reactor and solar neutrino energies were studied [1]. Here\, we extend our study to SN neutrino energies up to $\\approx$50 MeV\, and eval uations of partial cross sections for proton and neutron emission channels within the Standard Model [2]. Among them\, a reaction channel $^{13}$C ( $\\bar{\\nu}$\, $\\bar{\\nu}$'n) $^{12}$C (2$^{+}$\, 4.44 MeV) followed by prompt 4.44 MeV $\\gamma$ emission is discussed in relation to the shape distortion in the 5-7 MeV range in the measured neutrino spectrum in the s hort-baseline reactor neutrino experiments [3]. The cross section is too s mall to explain the extra enhancement in the spectrum. \n Coherent elast ic scattering cross section is obtained for ${13}$C\, and compared with th at for $^{12}$C. Nuclear structure effects in the cross sections are point ed out [2]. Possible merit of large recoil momenta in light nuclei for the study of neutron distributions in nuclei is discussed. \n For $^{16}$O\ , spin-dipole strength\, which are the dominant contributions to the cross sections\, and neutrino-induced reaction cross sections on $^{16}$O are i nvestigated [4]. Charged-current cross sections induced by SN neutrinos an d their dependence on Mikheyev-Smirnov-Wolfenstein neutrino oscillations a re discussed for a future SN burst [5]. \n\n[1] T. Suzuki\, A. B. Balante kin and T. Kajino\, Phys. Rev. C 86\, 015502 (2012).\n[2] T. Suzuki\, A. B . Balantekin\, T. Kajino and S. Chiba\, J. Phys. G 46\, 075103 (2019).\n[3 ] J. M. Berryman\, V. Brdar and P. Huber\, Phys. Rev. D 99\, 055045 (2019) .\n[4] T. Suzuki\, S. Chiba\, T. Yoshida\, K. Takahashi and H. Umeda\, Phy s. Rev. C 98\, 034613 (2018).\n[5] K. Nakazato\, T. Suzuki and M. Sakuda\, PTEP 2018\, 123E02 (2018).\n\nhttps://indico.tlabs.ac.za/event/85/contrib utions/1445/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1445/ END:VEVENT BEGIN:VEVENT SUMMARY:- DTSTART;VALUE=DATE-TIME:20200228T080000Z DTEND;VALUE=DATE-TIME:20200228T082000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1550@indico.tlabs.ac.za DESCRIPTION:https://indico.tlabs.ac.za/event/85/contributions/1550/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1550/ END:VEVENT BEGIN:VEVENT SUMMARY:A high precision narrow-band neutrino beam: the ENUBET project DTSTART;VALUE=DATE-TIME:20200225T143000Z DTEND;VALUE=DATE-TIME:20200225T150000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1548@indico.tlabs.ac.za DESCRIPTION:Speakers: Andrea Longhin ()\nThe knowledge of initial flux\, e nergy and flavor of current neutrino beams is currently the main limitatio n for a precise measurement of neutrino cross sections. The ENUBET ERC pro ject (2016-2021) is studying a facility based on a narrow band neutrino be am capable of constraining the neutrino fluxes normalization through the m onitoring of the associated charged leptons in an instrumented decay tunne l. Since March 2019\, ENUBET is also a CERN Neutrino Platform project (NP0 6/ENUBET) developed in collaboration with CERN A&T and CERN-EN. In ENUBET\ , the identification of large-angle positrons from $K_{e3}$ decays at sing le particle level can potentially reduce the $\\nu_e$ flux uncertainty at the level of 1%. This setup would allow for an unprecedented measurement o f the $\\nu_e$ cross section at the GeV scale. Such an experimental input would be highly beneficial to reduce the budget of systematic uncertaintie s in the next long baseline oscillation projects (i.e HyperK-DUNE). Furthe rmore\, in narrow-band beams\, the transverse position of the neutrino int eraction at the detector can be exploited to determine a priori with signi ficant precision the neutrino energy spectrum without relying on the final state reconstruction.\n\nThis contribution will present the final design of the ENUBET demonstrator\, which has been selected on April 2019 on the basis of the results of the 2016-2018 testbeams. It will also discuss adva nces in the design and simulation of the hadronic beam line. Special empha sis will be given to a static focusing system of secondary mesons that\, u nlike the other studied horn-based solution\, can be coupled to a slow ext raction proton scheme. The consequent reduction of particle rates and pile -up effects makes the determination of the $\\nu_{\\mu}$ flux through a di rect monitoring of muons after the hadron dump viable\, and paves the way to a time-tagged neutrino beam. Time-coincidences among the lepton at the source and the neutrino at the detector would enable an unprecedented puri ty and the possibility to reconstruct the neutrino kinematics at source on an event by event basis. We will also present the performance of positron tagger prototypes tested at CERN beamlines\, a full simulation of the pos itron reconstruction chain and the expected physics reach of ENUBET.\n\nht tps://indico.tlabs.ac.za/event/85/contributions/1548/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1548/ END:VEVENT BEGIN:VEVENT SUMMARY:Nuclear Matrix Elements of neutrinoless double beta decay calculat ed by Monte Carlo Shell Model for 76Ge and 136Xe DTSTART;VALUE=DATE-TIME:20200226T093000Z DTEND;VALUE=DATE-TIME:20200226T100000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1547@indico.tlabs.ac.za DESCRIPTION:Speakers: Takaharu Otsuka (Department of Physics\, University of Tokyo)\nThe neutrinoless double beta decay is of special importance in determining the fundamental properties of neutrinos. The nuclear matrix el ement of this decay must be evaluated in a sufficient accuracy\, and the s hell-model calculation can make contributions to this end. This is becaus e the shell-model calculations incorporate basically all correlations into the wave functions of the initial and final states of the decay\, and the accuracy of the calculation can be investigated by referring to other obs ervables. I will report results obtained by recent large-scale shell-mode l calculations on 76Ge and 136Xe as well as their daughter nuclei 76Se and 136Ba. Here the large-scale shell-model calculations mean those by Mont e Carlo Shell Model at its most advanced edition. The results are not awa y from the ranges of earlier studies\, but are rather on the edges of smal ler values. I will also discuss why such smaller values arise as natural consequences of basic features of the wave functions.\n\nhttps://indico.tl abs.ac.za/event/85/contributions/1547/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1547/ END:VEVENT BEGIN:VEVENT SUMMARY:Recent results on nuclear reactions of interest for neutrinoless d ouble beta decay at INFN-LNS within the NUMEN project DTSTART;VALUE=DATE-TIME:20200227T090000Z DTEND;VALUE=DATE-TIME:20200227T093000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1545@indico.tlabs.ac.za DESCRIPTION:Speakers: Manuela Cavallaro (INFN - LNS)\nResearches on neutri noless double beta decay have crucial implications on particle physics\, c osmology and fundamental physics. It is likely the most promising process to access the absolute neutrino mass scale. To determine quantitative info rmation from the possible measurement of the 0νββ decay half-lives\, th e knowledge of the Nuclear Matrix Elements (NME) involved in such transiti ons is mandatory. The use heavy-ion induced double charge exchange (DCE) r eactions as tools towards the determination of information on the NME is o ne of the goals of the NUMEN and the NURE projects. The basic point is tha t there are a number of similarities between the two processes\, mainly th at the initial and final state wave functions are the same and the transit ion operators are similar\, including in both cases a superposition of Fer mi\, Gamow-Teller and rank-two tensor components. \nThe availability of th e MAGNEX magnetic spectrometer for the measurements of the very suppressed DCE reaction channels is essential to obtain high resolution energy spect ra and accurate cross sections at forward angles including zero degree. Th e measurement of the competing multi-nucleon transfer processes allows to study their contribution and to constrain the theoretical calculations. \n An experimental campaign is ongoing at INFN-Laboratori Nazionali del Sud ( Italy) to explore medium-heavy ion induced reactions on target of interest for 0νββ decay. \nRecent results obtained by the (20Ne\,20O) and (18O\ ,18Ne) DCE reactions and competing channels\, measured for the first time using a 20Ne(10+) and 18O(8+) cyclotron beams at 15 AMeV will be presented at the conference. A preliminary analysis of the double charge exchange channel in comparison with the competitive multi-nucleon transfer channels will also be shown and commented.\n\nhttps://indico.tlabs.ac.za/event/85/ contributions/1545/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1545/ END:VEVENT BEGIN:VEVENT SUMMARY:Status and perspectives of the Hyper-Kamiokande project DTSTART;VALUE=DATE-TIME:20200227T134000Z DTEND;VALUE=DATE-TIME:20200227T141000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1500@indico.tlabs.ac.za DESCRIPTION:Speakers: Federico Nova (Rutherford Appleton Laboratory)\nA fu ture neutrino experiment based in Japan\, Hyper-Kamiokande (HK) consists o f a high-intensity neutrino beam from the J-PARC accelerator targeting a N ear Detector suite\, an Intermediate Water Cerenkov detector and an underg round world-largest Water Cerenkov Far Detector\, providing 0.19 Mt (fiduc ial mass) of ultra-pure water sensed by newly developed photo-sensors with 40%-equivalent photo-coverage\, to perform Cerenkov ring reconstruction w ith a few MeV energy threshold. A second identical far detector may later be added in Korea.\nBuilding on the legacy of Super-Kamiokande and T2K\, t he HK project will address a broad scientific program and substantially en hance our knowledge of both particle physics and astrophysics. Its objecti ves include precise measurements of neutrino oscillations and CP-asymmetry (with CPV discovery at 3 sigma for 76% of the phase space)\, solar neutri no astronomy\, determination of supernova burst dynamics\, detection of su pernova relic neutrinos allowing to study supernova populations\, searchin g for nucleon decay with improved sensitivity (10^{35} years for p->epi0 m ode at 90%CL) and finding possible exotic phenomena. \nHere we will presen t the project status and milestones\, from the beginning of construction i n 2020 towards the commissioning in 2027.\n\nhttps://indico.tlabs.ac.za/ev ent/85/contributions/1500/ LOCATION:Main Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1500/ END:VEVENT BEGIN:VEVENT SUMMARY:Limits on the spectral parameters of core-collapse neutrinos extra cted from the Diffuse Supernovae Neutrino Flux (DSNvF). DTSTART;VALUE=DATE-TIME:20200227T113000Z DTEND;VALUE=DATE-TIME:20200227T115000Z DTSTAMP;VALUE=DATE-TIME:20260308T041221Z UID:indico-contribution-85-1483@indico.tlabs.ac.za DESCRIPTION:Speakers: Ernesto Kemp (University of Campinas - UNICAMP)\nIn February 1987 neutrinos from the SN1987 traveled a distance of about 50 kp c from the Large Magellanic Cloud and were detected on Earth by two of the largest neutrino telescopes of that time\, Kamiokande-II and IMB\, thus c onfirming the vast amount of energy (~10^53 ergs) predicted to be emitted in neutrinos and setting allowed intervals for the emission parameters lik e the neutrinosphere temperature. The confirmation of the main features of neutrino emission for a single supernova also supports the prediction tha t all the past supernovae in the universe should originate a ubiquitous an d isotropic neutrino flux\, the so-called Diffuse Supernova Neutrino Flux (DSNvF). Up to now\, no evidence of events from DSNvF was found by differ ent neutrino telescopes. In this work\, we use the upper limit on the DSNv F obtained from the null results of the Super-Kamiokande collaboration to estimate limits on average energy\, spectral pinching\, and neutrinosphere temperature for electron antineutrinos from a core-collapse neutrino burs t. Finally\, we check our results with those obtained from the solely SN19 87a data concluding that the DSNvF may lead to comparable - or even better - upper limits on the neutrino emission parameters.\n\nhttps://indico.tla bs.ac.za/event/85/contributions/1483/ LOCATION:Parallel Venue URL:https://indico.tlabs.ac.za/event/85/contributions/1483/ END:VEVENT END:VCALENDAR