Advances in shell-model calculations and neutrino-induced reactions

✍ Scribed by Toshio Suzuki; Satoshi Chiba; Takashi Yoshida; Koji Higashiyama; Michio Honma; Toshitaka Kajino; Takaharu Otsuka

• Publisher: Elsevier Science
• Year: 2007
• Tongue: English
• Weight: 973 KB
• Volume: 59
• Category: Article
• ISSN: 0146-6410
• DOI: 10.1016/j.ppnp.2007.01.013

✦ Synopsis

Neutrino-induced reactions on 12 C and 4 He as well as Fe and Ni isotopes are studied, based on recent advances in shell-model calculations in p-shell and fp-shell nuclei. The charge-exchange reaction cross sections on 12 C and 56 Fe based on new shell-model Hamiltonians are found to be enhanced compared with previous calculations. Neutron knock-out cross sections are also found to be enhanced in 12 C and 4 He compared with those obtained by conventional shell-model Hamiltonians. As a consequence of this, a possible enhancement in the production yields of the light elements, 7 Li and 11 B, during supernova explosions is pointed out. We expect more neutrons to be knocked out by supernova neutrinos from more neutron-rich Ni isotopes.