02/12/2012, 19:00
Dr
Rachid Mazini
(Institute of Physics, Academia Sinica Taiwan)
03/12/2012, 12:00
The latest results of the Standard Model Higgs boson search with the ATLAS experiment, in pp collisions data collected in 2011 and 2012 are presented. Individual search channels, as well as their combination are detailed. The significance of the observed excess of the Higgs-like resonance are updated and presented. Preliminary results from the measurement of the properties of the Higgs-like...
Prof.
Mayda Velasco
(Northwestern University)
03/12/2012, 12:45
Results about the experimental searches for the Standard Model Higgs in the decays to fermions and gauge bosons at a collision energy of 7 and 8 TeV at the LHC are presented. The analysis uses pp collision data recorded by the CMS detector at the LHC, corresponding to integrated luminosities of 5.05 fb-1 at collision energy of 7 TeV and 5.26 fb-1 at 8 TeV. The searches cover overall Higgs...
Dr
Roberto Preghenella
(Museo Storico della Fisica e Centro di Studi e Ricerche "Enrico Fermi" and INFN Sezione di Bologna)
03/12/2012, 14:30
Thanks to the unique detector design adopted to fulfil tracking and particle-identification (PID) requirements (e.g. low momentum cut-off and low material budget), the ALICE experiment provides significant information about hadron production both in pp and Pb--Pb collisions. In particular, the spectral shapes and production yields of identified particles play a key role in the study of the...
Mr
Christophe Royon
(IRFU-SPP, CEA Saclay)
03/12/2012, 14:30
We present a new method to test the Standard Model expectations at the LHC using photon-induced WW and ZZ productions. Both W decay in the main ATLAS or CMS detectors while scattered protons are measured in forward detectors. The sensitivity to anomalous WW gamma gamma and ZZ gamma gamma quartic couplings can be improved respectively by four orders of magnitude compared to the present LEP...
Dr
Joerg Aichelin
(SUBATECH)
03/12/2012, 14:30
Study of the radiative and collisional energy loss of heavy quarks in a QGP and the following hadronisation. Analysis of the recent RHIC and LHC B and D meson data.
Ms
Nicole Alice Martin
(Research Division and ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany)
03/12/2012, 15:00
ALICE is the experiment at the CERN LHC dedicated to the investigation of nucleus--nucleus collisions at the highest energies ever reached in the laboratory. The excellent particle identification capabilities of ALICE allow for the reconstruction of a significant number of rare states or even exotic ones. In this talk we present results from a sample of Pb--Pb collisions at a center of mass...
Mr
Rocky So
(University of British Columbia)
03/12/2012, 15:00
Babar collided electrons and positrons at a centre of mass energy of ~10GeV at the Stanford Linear Accelerator Center. A light CP-odd Higgs boson is expected in extensions to the Standard Model such as Next to Minimal Supersymmetry. The Babar Collaboration searched for a light Higgs boson (A0) produced in radiative decays of an Υ meson (Υ → γA0). We saw no evidence of the A0 decaying into...
Dr
Elena Bratkovskaya
(ITP, FIAS, Uni. Frankfurt)
03/12/2012, 15:00
The dynamics of partons and hadrons in relativistic nucleus-nucleus collisions is analyzed within the novel Parton-Hadron-String Dynamics (PHSD) transport approach, which is based on a dynamical quasiparticle model for partonic phase (DQPM) including a dynamical hadronization scheme. The PHSD model reproduces a large variety of observables from SPS to LHC energies, e.g. as quark-number...
Prof.
Ludwik Turko
(Institute of Theoretical Physics, University Wroclaw)
03/12/2012, 16:00
An effective model reproducing:the equation of state of hadronic matter as obtained in lattice QCD simulations basic is constructed. The model is based on the Mott-Hagedorn resonance gas approach and extended PNJL model. All basic physical characteristics of processes encountered in the dense hadronic matter are taken into account.
Dr
Mikolaj Krzewicki
(GSI)
03/12/2012, 16:00
The expansion of the spatially asymmetric dense and hot medium created in heavy-ion collisions causes, through multiple constituent interactions, correlations between the produced particles. Anisotropic flow, apparent in the azimuthal correlations with respect to the collision symmetry planes is a unique observable associated with the thermodynamic properties and the evolution of the created...
Mr
Antonio Branca
(University of Padova / INFN / CERN)
03/12/2012, 16:00
Dr
Will Horowitz
(University of Cape Town)
03/12/2012, 16:30
High momentum particles provide the most direct probe of the pertinent physics of the quark-gluon plasma produced at RHIC and LHC. We present comparisons of the latest pQCD- and AdS/CFT-based energy loss models with the newest high momentum measurements from RHIC and LHC. In contrast to the naive success of strong coupling AdS/CFT methods in describing the very small viscosity to entropy...
Dr
Guillermo Contreras
(CVUT Praga)
03/12/2012, 16:30
Ultra-relativistic heavy ions generate strong electromagnetic fields which offer
the possibility to study gamma--gamma and gamma-nucleus processes at the
LHC in the so called ultra-peripheral collisions (UPC). The coherent photoproduction
of J/Psi vector mesons in UPC is sensitive to the gluon distribution
of the interacting nuclei. Here we report on ALICE results of J/Psi...
Dr
Arnaud Ferrari
(Uppsala University)
03/12/2012, 16:30
In several theories beyond the Standard Model, the Higgs sector consists of more than one complex scalar doublet. For instance, supersymmetric models such as MSSM have 5 physical Higgs states, two charged and three neutral. In this presentation, a review of the searches for new neutral and charged Higgs bosons in ATLAS at the Large Hadron Collider is presented.
Prof.
Helmut Satz
(University of Bielefeld)
03/12/2012, 17:00
Prof.
Eilam Gross
(Weizmann Institute of Science)
04/12/2012, 09:15
The LHC statistical method is based on the Profile Likelihood test statistics and its asymptotic formalism. In this lecture the statistical methods (including the so called Look Elsehere Effect) and their implications on the Higgs search and discovery at the LHC will be reviewed.
Dr
Eugeni Grauges Pous
(Universitat de Barcelona)
04/12/2012, 10:45
Dr
Sahal Yacoob
(University of Kwazulu Natal)
04/12/2012, 12:00
Dr
Domenico Elia
(INFN Bari)
04/12/2012, 12:45
The ALICE experiment at the LHC has measured the production of strange hadrons in Pb--Pb and pp collisions at unprecedented beam energies. Particles are reconstructed via their weak decay topologies exploiting the excellent tracking and particle identification capabilities of the apparatus. Transverse momentum spectra and yields at mid-rapidity have been studied for &Lambda, &Xi-...
Mr
Christopher Powell
(Lawrence Berkeley National Laboratory / University of Cape Town)
04/12/2012, 14:30
The production of quarkonium has been studied to provide information about the Quark Gluon Plasma (QGP) that is expected to be created in relativistic heavy ion collisions at RHIC. Lattice QCD predicts a suppression of quarkonium production in a hot and dense nuclear medium, due to the Debye screening of the potential between heavy quarks, relative to proton-proton collisions. The suppression...
Mr
Leonardo di Matteo
(University and INFN Milano-Bicocca)
04/12/2012, 14:30
A search for a standard model Higgs boson decaying into a WW pair is presented, using CMS proton-proton collision data both at 7 TeV and 8 TeV centre-of-mass energy. Both fully-leptonic and semileptonic W decay final states are considered. The combination of these two decay modes is sensitive to the existence of the SM Higgs in the mass range [120, 600] GeV/c^2.
Dr
Guillermo Contreras
(CVUT Praga)
04/12/2012, 15:00
Dr
Kai Yi
(University of Iowa)
04/12/2012, 15:00
We report on a search for single and pair-produced particles in leading two-jet and four-jet final states at CMS, using pp collision data at sqrt{s} = 7 TeV and 8 TeV provided by the Large Hadron Collider. In the standard model, dijet masses based on leading jets in the central region of CMS should be smoothly distributed. We use this spectrum to search for narrow resonances and set lower...
Dr
Ada Farilla
(INFN Roma Tre)
04/12/2012, 15:00
The results of the ATLAS search for the Standard Model Higgs boson decaying to a b-quark pair and Tau-lepton pair are presented, based on the proton-proton collision data recorded in 2011 and 2012. Upper limits on the cross-section times branching ratio are derived.
Mr
Tomas Jacoubek
(Institute of Physics Academy of Sciences of the Czech Republic)
04/12/2012, 16:00
Measurements of quarkonia and open heavy-flavor states at the LHC can often probe the available predictions. ATLAS has measured the production cross section of prompt and non-prompt J/Psi as well as Y(1,2,3 S), together with the inclusive production of b-flavored hadrons. The kinematical ranges covered by these analyses probes higher transverse momenta than previous studies. The results are...
Ms
Flavia de Almeida Dias
(Sao Paulo State University)
04/12/2012, 16:00
We present the results of searches for new resonances decaying to dibosons (WW, WZ, ZZ)
using data collected by the CMS experment at the LHC. The results are interpreted in benchmari models, such as the Randall-Sundrum gravitons, the Sequential Standard Model W', and Technicolor.
Dr
German David Carrillo Montoya
(University of the Witwatersrand)
04/12/2012, 16:00
A Higgs boson search in the H->GammaGamma, H -> WW ->lvlv and H->ZZ->4l decay modes has been performed using proton-proton collisions collected in 2011 and 2012 with the ATLAS detector. Updated results on the observed resonance including first measurement of its properties are presented.
Dr
Fabrizio Palla
(INFN, Pisa)
04/12/2012, 16:30
One promising way to search for physics beyond the Standard Model is to look at decay modes that are extremely rare or forbidden, such as the decays of neutral charm and bottom quarks into opposite charge muon pairs. New Physics models can enhance the Standard Model predicted BR by several order of magnitudes. We will report the latest results of the search for D0->µµ and Bs(Bd)->µµ using...
Dr
Jonathan Hays
(Queen Mary University London)
04/12/2012, 16:30
Earlier this year a new boson with a mass of around 125 GeV was discovered at the LHC. Though it is compatible with the long sought-after Higgs boson only precise measurements of its properties will confirm this. The latest results from CMS on measurements of the properties of the new boson, derived from a study of all production and decay channels measured so far, will presented together with...
Mr
Simon Viel
(University of British Colombia)
04/12/2012, 16:30
Resonances decaying into a pair of particles are an obvious place to look for phenomena beyond the Standard Model. This talk summarizes wide collection of recent results on searches for resonances decaying to pairs of jets including top antitop, leptons including taus and dibosons. Variety of Beyond the Standard Model are considered, among them GUT models, the Randall-Sundrum gravitons a well...
Dr
Grazyna Odyniec
(Lawrence Berkeley National Laboratory)
04/12/2012, 17:00
Dr
Anton Andronic
(GSI Darmstadt)
05/12/2012, 10:00
Among the various suggested probes of deconfinement, charmonium states play a distinctive role. J/psi is the first hadron for which a clear mechanism of suppression (melting) in deconfined matter was proposed early on, based on the color analogue of Debye screening. The ALICE measurements of J/psi production in Pb-Pb collisions are performed as a function of collision centrality, transverse...
Dr
Andree Robichaud-Veronneau
(University of Oxford)
05/12/2012, 12:00
Mr
William Buttinger
(University of Cambridge)
05/12/2012, 14:30
Vector boson production in pp collisions at 7 TeV has been extensively studied by ATLAS. Recent results include the measurement of Drell-Yan differential production cross section and of jets and heavy flavours production in association with vector bosons. ATLAS measurements of diboson production processes involving all combinations of W and Z are also summarized. Differential and total...
Mr
Kyrre Skjerdal
(University of Bergen)
05/12/2012, 14:30
Photoproduction of ρ0 mesons in ultra-peripheral Pb+Pb collisions has been studied by the ALICE Collaboration at the CERN LHC. The strong photon flux associated with relativistic charged particles leads to a very large cross section for exclusive photoproduction of ρ0 meson in interactions of the type P b + P b → P b + P b + ρ0. For a ρ0 produced at mid-rapidity at the LHC, the photon-nucleus...
Dr
Alessandra Fanfani
(University and INFN Bologna)
05/12/2012, 14:30
Using large data samples of di-muon events, CMS has performed detailed measurements in the field of exotic quarkonium production. We will present very recent result on the X(3872) exotic state, in the J/psi pi pi decay channel, based on ~6500 events, collected at sqrt(s) = 7 TeV, and covering unprecedentedly high values of pT. The cross-section ratio w.r.t. the psi(2S) will be given...
Dr
Vitaliano Ciulli
(Università di Firenze and INFN, Firenze)
05/12/2012, 15:00
The latest electroweak results from CMS, based on pp collision data taken at 7 and 8 TeV, are presented. In particular precise measurements of the inclusive and differential cross sections for W Z boson production, and for multi-bosons production will be shown.
Mr
Valerio Consorti
(Albert-Ludwigs-Universitaet Freiburg (DE))
05/12/2012, 15:00
Despite the absence of experimental evidence, weak scale supersymmetry remains one of the best motivated and studied Standard Model extensions. This talk summarizes recent ATLAS results on inclusive searches for supersymmetric squarks and gluinos in events containing jets, missing transverse momentum with and without leptons of all generations and photons.
Dr
Zinhle Buthelezi
(iThemba LABS)
05/12/2012, 15:00
A Large Ion Collider Experiment (ALICE) is one of the 4 large experiments at the CERN Large Hadron Collider (LHC). The primary purpose of ALICE is to study and characterize the Quark Gluon Plasma (QGP) formed in high-energy nuclear collisions. The capabilities of ALICE include excellent particle identification, wide rapidity coverage, precise vertexing and tracking in a high multiplicity...
Prof.
Franco Simonetto
(Universita & INFN Padova)
05/12/2012, 16:00
While CP violation in the B-meson system has been well established by the B factories, there has been no direct observation of time-reversal violation in this system. Furthermore, previous T-violation measurements in other systems are typically not able to distinguish between T and CP violation. Using 468 million B-Bbar pairs collected by the BABAR detector at SLAC, we directly measure...
Dr
Nicola de Filippis
(Politecnico and INFN Bari)
05/12/2012, 16:00
Prof.
David Rischke
(University of Frankfurt)
05/12/2012, 16:00
In this talk (based on arXiv:1202.4551 [nucl-th]), I present a new derivation of dissipative relativistic fluid dynamics from the Boltzmann equation via the method of moments. In constrast to previous derivations, the single-particle distribution function is not subjected to a truncation in an uncontrolled way. Instead, it is expanded in terms of irreducible tensors in momentum-space and...
Mr
Ammar Abdalgabar
(University of Wits)
05/12/2012, 16:30
Dr
Helmut Oeschler
(TU Darmstadt)
05/12/2012, 16:30
Dr
Mark Hodgkinson
(University of Sheffield)
05/12/2012, 16:30
Naturalness arguments for weak-scale supersymmetry favour supersymmetric partners of the third generation quarks, Higgs and electroweak gauge bosons with masses not too far from those of their Standard Model counterparts. Real and virtual production of third generation squarks via decay of a gluino can be significant if the mass of the gluino does not exceed the TeV scale. Top or bottom...
Ms
Catherine Hsu
(University of the Witwatersrand)
05/12/2012, 16:40
Mr
Doomnull Attah Unwuchola
(University of Johannesburg)
05/12/2012, 16:50
Prof.
Krzysztof Redlich
(University of Wroclaw)
05/12/2012, 17:00
Dr
Olaf Steinkamp
(Physik-Institut der Universitaet Zuerich)
06/12/2012, 12:00
Mr
Killian Rosbach
(Université de Genève, DPNC)
06/12/2012, 12:45
The ATLAS collaboration has performed studies of a wide range of Standard Model physics processes in pp collisions. Recent measurements of soft particle to hard photon and jet production, which are sensitive to QCD phenomena, are presented. Drell-Yan, vector boson and diboson production cross sections are also discussed, together with constraints on anomalous triple-gauge boson couplings. ...
Prof.
Uri MAOR
(Tel Aviv University)
06/12/2012, 14:30
The properties of p-p scattering amplitudes at the TeV-scale and above are studied, so as to check their asymptotic behavior and determine the rate at which they approach the bounds implied by s and t channel unitarity saturation. I shall examine the available cross sections at exceedingly high energies,as well as the corresponding behavior of the coupled models aiming to reproduce the values...
Dr
Mathieu Aurousseau
(University of Johannesburg)
06/12/2012, 14:30
Recent results on Higgs searches at the LHC by the ATLAS and CMS collaborations claim the observation of a new boson with properties compatible with the Standard Model (SM) Higgs boson, at a mass of about 126 GeV. The production rate of the new particle seems compatible with the SM prediction. In some models beyond the SM, an Abelian Hidden sector is coupled to the Standard Model, and the...
Dr
Silvia Costantini
(University of Ghent)
06/12/2012, 14:30
Precision measurements are presented of the top-pair production cross section in proton-proton collisions at the LHC at a centre-of-mass energies of 7 and 8 TeV. The data are collected with the CMS experiment in 2011 and 2012. The measurements are performed in several decay channels, the lepton+jets, the dilepton and the fully hadronic channels, including the tau-dilepton and tau+jets modes....
Dr
Alan Cornell
(School of Physics, University of the Witwatersrand)
06/12/2012, 15:00
We review the Universal Extra-Dimensional Model compactified on a $S^1/Z_2$ orbifold, and the renormalisation group evolution of quark and lepton masses, mixing angles and phases both in the UED extension of the Standard Model and of the Minimal Supersymmetric Standard Model. We consider two typical scenarios: all matter fields propagating in the bulk, and matter fields constrained to the...
Dr
Xin Shi
(National Taiwan University)
06/12/2012, 15:00
We review several recent results of the CMS experiment in the field of B hadron productions, spectroscopy and decays. A measurement of the &Lambdab lifetime using the decay &Lambdab to J/&psi Lambda is presented. The dataset was recorded with the CMS detector using a trigger selecting unbiased J/&psi decaying to dimuons. We performed a flavour-untagged measurement of the...
Dr
Danilo Enoque Ferreira de Lima
(University of Glasgow)
06/12/2012, 15:00
Measurements of the top quark production cross sections in proton-proton collisions with the ATLAS detector at the Large Hadron Collider are presented. The measurement require no, one or two electrons or muons in the final state (single lepton, dilepton, hadronic channel). In addition, the decay modes with tau leptons are tested (channels with tau leptons). The main focus are measurements of...
Dr
Federico de Guio
(University of Milano-Bicocca and INFN)
06/12/2012, 16:00
The electromagnetic calorimeter of CMS (ECAL) is a hermetic, fine grained and homogeneous calorimeter containing 75848 lead-tungstate (PbWO4) crystals, completed by a silicon preshower installed in front of the endcaps. The ECAL sensitivity to decay modes with electromagnetic objects in the final state, such as narrow resonances decaying into two photons, is achieved through i ts excellent...
Prof.
Jean Cleymans
(University of Cape Town/iThemba LABS)
06/12/2012, 16:00
Mrs
Lucia Batkova
(Comenius University in Bratislava)
06/12/2012, 16:00
Properties of the top quark are measured with the ATLAS detector using LHC proton- proton collisions data. Measurements of the top-quark mass and charge, as well as of the polarization of W bosons in top quark decays to probe the Wtb-vertex are presented. In addition, measurements of the spin correlation between top and anti-top quarks as well as of the top- quark charge asymmetry, which...
Mr
Tom Cornelis
(University of Antwerp)
06/12/2012, 16:30
We present recent measurements of jet cross sections and their properties, using proton-proton collision data collected with the CMS detector. Measurements of jet production rates in association with W, Z, or photons are also presented. Jet measurements at the LHC can be used to confront predictions of perturbative QCD, are sensitive to new physics signals, and can be used to constrain PDFs.
Prof.
Bruce Mellado
(University of Wisconsin - Madison & The University of the Witwatersrand)
06/12/2012, 16:30
Prof.
Andre Peshier
(University of Cape Town)
06/12/2012, 16:30
I will argue that in heavy-ion collisions the observed strong quenching of heavy quark flavors at intermediate momenta has a sizable contribution from binary scatterings in the quark-gluon plasma. To arrive at this conclusion, I go beyond existing approaches in two aspects: (i) by calculating the collision probability beyond leading-log accuracy, taking into account the momentum dependence of...
Prof.
Krishanlal Bharuth-Ram
(University of KwaZulu-Natal, South Africa)
07/12/2012, 10:00
K. Bharuth-Ram 1, H. P. Gunnlaugson 2, T E Mølholt 3, D. Naidoo 4, R. Mantovan 5, H. Masenda 4, M. Ncube 4, K. Johnston 6, W. Dlamini 1, R. Sielemann 7, H. P. Gíslason 3, G.Langouche 8,S. Ólafsson 3, G. Weyer 2, and the ISOLDE Collaboration 6
1 School of Physics, University of KwaZulu-Natal, South Africa; 2 Institute of Physics and Astronomy, Aarhus University, Aarhus, Denmark; 3 Science...
Prof.
Pradeep Sarin
(IIT, Bombay)
07/12/2012, 10:45
The talk presents recent results on collisions involving Pb ions from the CMS Experiment at the LHC. Results include jet quenching and jet modification studies; suppression of the production of J/psi and Y particles and their excited states; electroweak boson production; and global and collective features of heavy ion collisions, such as various distributions and azimuthal asymmetry of the...
Prof.
Ulrich Heinz
(The Ohio State University)
07/12/2012, 12:00
The Little Bangs created in ultrarelativistic heavy-ion collisions share many characteristic features with the cosmological evolution after the Big Bang. I will demonstrate how quantum fluctuations in the initial state of the Little Bang propagate via hydrodynamic evolution (supplemented by an early pre-equilibrated thermalization and a late kinetic freeze-out stage) into the experimentally...
Prof.
Andrew Askew
(Florida State University)
07/12/2012, 12:45
We present the results of searches for Supersymmetry performed using the datasets collected in 2011-2012 by the CMS experiment at the LHC in pp-collisions at center-of-mass energy of 7 and 8 TeV. The results are interpreted in the light of the cMSSM and simplified models.
Dr
Sabine Kraml
(LPSC Grenoble)
07/12/2012, 14:30
We discuss how the current LHC results, often presented in the context of the CMSSM or simplified models, constrain supersymmetry in general. To this end, we are particularly interested in "natural" or "effective" SUSY" scenarios, which are preferred on the one hand by theoretical considerations, and on the other hand by flavor constraints. Moreover, assuming that the LHC and Tevatron excesses...
Dr
Helen Hayward
(University of Liverpool)
07/12/2012, 14:30
An extended QCD sector beyond the minimal supersymmetric standard model or the admission of R-parity violation introduces new signatures to the search for supersymmetry at the LHC. Strongly interacting resonances may decay to jets, sleptons may decay via lepton-flavour violating processes and lightest supersymmetric particles may decay into many leptons with or without missing transverse...
Prof.
Carsten Greiner
(University of Frankfurt)
07/12/2012, 15:00
Over the years a microscopic transport description for modeling the parton dynamics of ultrarelativistic heavy ion collisions at RHIC and at LHC has been developed. The parton cascade BAMPS is based on the solution of the relativistic Boltzmann equation treating perturbative QCD (pQCD) elastic and inelastic bremsstrahlung interactions. Collective effects of the evolving fireball, the depletion...
Dr
John Almond
(University of Manchester)
07/12/2012, 15:00
Various extensions of the Standard Model predict the existence of new types of particles. We report on several searches for exotics new particles such as:
excited lepton, adjonction of a 4th family of heavy chiral fermions, vector-like quarks that couple to light quarks and Z or W bosons. The talk presents recent results with data collected by the ATLAS experiment at the LHC.
Dr
Chiara Oppedisano
(INFN Sezione di Torino)
07/12/2012, 16:00
Global event observables are a fundamental tool to characterize the properties of the strongly interacting medium created in heavy-ion collisions at the LHC. The ALICE experiment measured charged particle multiplicity distributions in Pb-Pb collisions at √sNN = 2.76 TeV in a wide pseudo-rapidity range (-5<&eta < 5.5) using different techniques. In heavy-ion interactions the...
Dr
Robert Kowalewski
(University of Victoria)
07/12/2012, 16:00
