Abstract
Gamow-Teller transitions in p-shell and fp-shell nuclei are invesigated based on new shell model interactions. Neutrino-nucleus reactions induced by accelerator and supernova neutrinos are studied for 12C as well as Fe and Ni isotopes by using the Gamow-Teller strengths obtained by the shell models. The charge exchange reaction cross section on 12C is found to be enhanced compared with previous calculations both for decay-at-rest (DAR) neutrinos and supernova neutrinos. In the charge exchange reaction on 56Fe, the cross section is also found to be enhanced for a new shell model interaction in comparison with a previous shell model calculation. Neutrino-37Cl reaction is studied for solar neutrinos with the use of a recent experimental Gamow-Teller strength, and compared with shell model calculations. The USD shell model interaction with the universal quenching of the axial-vector coupling constant (gA) is found to well reproduce the cross section obtained from the observed Gamow-Teller strength.
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