BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CERN//INDICO//EN
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:20260516T054442Z
UID:indico-contribution-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
END:VCALENDAR