Neutrino-Nucleus Reactions at MeV Region based on New Shell-Model Hamiltonians

Journal Article · Wed Nov 23 04:00:00 EST 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3661599· OSTI ID:21612283

Suzuki, Toshio ^[1]

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1. Department of Physics and Graduate School of Integrated Basic Sciences, 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 and National Astronomical Observatory of Japan, Mitaka, Tokyo 181-8588 (Japan)

Neutrino-nucleus reactions at MeV region are evaluated by using new shell model Hamiltonians, which are found to improve the description of spin degrees of freedom in nuclei as well as shell evolutions. The light element synthesis by neutrino processes in supernova explosions is discussed with the use of the new reaction cross sections for {sup 12}C and {sup 4}He. Possible constraints on the mixing angle {theta}{sub 13} and the neutrino mass hierarchy are pointed out to be imposed by the production yields of {sup 7}Li and {sup 11}B. Spin-dipole transition strengths in {sup 16}O and neutrino-induced reactions on {sup 16}O are investigated with the new improved Hamiltonian. The Gamow-Teller transition strength in {sup 56}Ni for the new Hamiltonian, which is more fragmented compared to previous calculations, is found to lead to the enhancement of the production yield of {sup 55}Mn in population III stars.

• OSTI ID: 21612283
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1405; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR MOMENTUM
BARYON-BARYON INTERACTIONS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
BORON 11
BORON ISOTOPES
CARBON 12
CARBON ISOTOPES
CROSS SECTIONS
DAYS LIVING RADIOISOTOPES
ELECTRON CAPTURE RADIOISOTOPES
ENERGY RANGE
EVEN-EVEN NUCLEI
GAMOW-TELLER RULES
HADRON-HADRON INTERACTIONS
HAMILTONIANS
HELIUM 4
HELIUM ISOTOPES
INTERACTIONS
INTERMEDIATE MASS NUCLEI
ISOTOPES
LEPTON REACTIONS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
LIGHT NUCLEI
LITHIUM 7
LITHIUM ISOTOPES
MANGANESE 55
MANGANESE ISOTOPES
MATHEMATICAL MODELS
MATHEMATICAL OPERATORS
MEV RANGE
NEUTRINO OSCILLATION
NEUTRINO REACTIONS
NEUTRINO-NUCLEON INTERACTIONS
NICKEL 56
NICKEL ISOTOPES
NUCLEAR MODELS
NUCLEAR REACTION YIELD
NUCLEAR REACTIONS
NUCLEI
NUCLEON-NUCLEON INTERACTIONS
NUCLEOSYNTHESIS
ODD-EVEN NUCLEI
OXYGEN 16 TARGET
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
QUANTUM OPERATORS
RADIOISOTOPES
SHELL MODELS
SPIN
STABLE ISOTOPES
SYNTHESIS
TARGETS
WEINBERG ANGLE
YIELDS