Neutrino-Nucleus Reactions and Nucleosynthesis

Journal Article · Wed May 21 00:00:00 EDT 2008 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2943593· OSTI ID:21143487

Suzuki, Toshio ^[1]; Chiba, Satoshi ^[2]; Yoshida, Takashi ^[3]; Honma, Michio ^[4]; Higashiyama, Koji ^[5]; Umeda, Hideyuki ^[6]; Nomoto, Ken'ichi ^[6]; Kajino, Toshitaka ^[7]; Otsuka, Takaharu ^[8]

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1. Department of Physics, College of Humanities and Sciences, Nihon University, Sakurajosui 3-25-40, Setagaya-ku, Tokyo 156-8550, Japan, Center for Nuclear Study, University of Tokyo, Hirosawa, Wako-shi, Saitama, 351-0198 (Japan)
2. Advanced Science Research Center, Japan Atomic Energy Agency, 2-4 Shirakata-Shirane, Tokai, Naka-gun, Ibaraki 319-1195 (Japan)
3. National Astronomical Observatory of Japan, Mitaka, Tokyo 181-8588 (Japan)
4. Center for Mathematical Sciences, University of Aizu, Aizu-Wakamatsu, Fukushima (Japan)
5. Department of Physics, Chiba Institute of Technology, Narashino, Chiba 275-0023 (Japan)
6. Department of Astronomy, School of Science, University of Tokyo, Tokyo 113-0033 (Japan)
7. Department of Astronomy, Graduate School of Science, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan)
8. Department of Physics and Center for Nuclear Study, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan)

Neutrino-induced reactions on {sup 12}C, {sup 4}He as well as Fe and Ni isotopes are studied based on new shell model Hamiltonians for p-shell and fp-shell. Gamow-Teller and spin-dipole transitions are investigated, and applied to neutrino-nucleus reactions induced by both DAR and supernova neutrinos. The reaction cross sections are found to be enhanced compared with conventional Hamiltonians as well as previous calculations. The production yields of {sup 7}Li and {sup 11}B during supernova explosions are found to be enhanced, and the effects of neutrino oscillations and implications of the enhancement on the constraint on temperature for {nu}{sub {mu}}{sub ,{tau}} and {nu}-bar{sub {mu}}{sub ,{tau}} are discussed. Production of other light elements such as {sup 10}Be and {sup 10}B by neutrino processes is also discussed. Neutral current reactions on Ni and Fe isotopes induced by supernova neutrinos are investigated. Effects of neutrino-induced reactions on the production yields of heavy elements such as Mn are discussed.

• OSTI ID: 21143487
• Journal Information: AIP Conference Proceedings, Vol. 1016, Issue 1; Conference: 10. international symposium on origin of matter and evolution of galaxies: From the dawn of Universe to the formation of solar system, Sapporo (Japan), 4-7 Dec 2007; Other Information: DOI: 10.1063/1.2943593; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BERYLLIUM 10
BETA DECAY
BORON 10
BORON 11
CARBON 12 TARGET
CROSS SECTIONS
GAMOW-TELLER RULES
HAMILTONIANS
HELIUM 4 TARGET
IRON ISOTOPES
LITHIUM 7
MANGANESE ISOTOPES
NEUTRAL CURRENTS
NEUTRINO OSCILLATION
NEUTRINO REACTIONS
NICKEL ISOTOPES
NUCLEAR REACTION YIELD
NUCLEOSYNTHESIS
SHELL MODELS
SUPERNOVAE