Physics
Scientific paper
Feb 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011phrvc..83b8801c&link_type=abstract
Physical Review C, vol. 83, Issue 2, id. 028801
Physics
1
Hartree-Fock And Random-Phase Approximations, Relation With Nuclear Matrix Elements And Nuclear Structure, Neutrino Scattering
Scientific paper
We calculated neutrino reactions on Ar40 for detecting core-collapsing supernovae (SNe) neutrinos. The nucleus was originally exploited to identify the solar neutrino emitted from B8 produced in pp chains on the Sun. With the higher energy neutrinos emitted from the core-collapsing SNe, contributions from higher multipole transitions, as well as from the Gamow-Teller and Fermi transitions, are shown to be important ingredients for understanding reactions induced by the SN neutrino. Moreover, higher excited states beyond a few states known in experiment diminish significantly the expected large difference between the cross sections of νe and ν¯e reactions on Ar40, which difference is anticipated because of the large Q value in the ν¯e reaction. The reduction is shown to lead to a difference between them of only a factor of 2.
Cheoun Myung-Ki
Ha Eunja
Kajino Toshitaka
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