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Title: Neutrino-nucleus reactions based on recent structure studies

Abstract

Neutrino-nucleus reactions are studied with the use of new shell model Hamiltonians, which have proper tensor components in the interactions and prove to be successful in the description of Gamow-Teller (GT) strengths in nuclei. The new Hamiltonians are applied to obtain new neutrino-nucleus reaction cross sections in {sup 12}C, {sup 13}C, {sup 56}Fe and {sup 56}Ni induced by solar and supernova neutrinos. The element synthesis by neutrino processes in supernova explosions is discussed with the new cross sections. The enhancement of the production yields of {sup 7}Li, {sup 11}B and {sup 55}Mn is obtained while fragmented GT strength in {sup 56}Ni with two-peak structure is found to result in smaller e-capture rates at stellar environments. The monopole-based universal interaction with tensor force of π+ρ meson exchanges is used to evaluate GT strength in {sup 40}Ar and ν-induced reactions on {sup 40}Ar. It is found to reproduce well the experimental GT strength in {sup 40}Ar.

Authors:
 [1];  [2]
  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)
  2. (Japan)
Publication Date:
OSTI Identifier:
22391798
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1663; Journal Issue: 1; Conference: NuINT12: 8. International Workshop on Neutrino-Nucleus Internactions in the Few-GeV Region, Rio de Janeiro (Brazil), 22-27 Oct 2012; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ARGON 40 TARGET; BORON 11; BOSON-EXCHANGE MODELS; CARBON 12 TARGET; CARBON 13 TARGET; CROSS SECTIONS; GAMOW-TELLER RULES; HAMILTONIANS; IRON 56 TARGET; LITHIUM 7; MANGANESE 55; NEUTRINO-NUCLEON INTERACTIONS; NICKEL 56 TARGET; NUCLEAR REACTION YIELD; SHELL MODELS; TENSOR FORCES

Citation Formats

Suzuki, Toshio, and National Astronomical Observatory of Japan, Mitaka, Tokyo 181-8588. Neutrino-nucleus reactions based on recent structure studies. United States: N. p., 2015. Web. doi:10.1063/1.4919476.
Suzuki, Toshio, & National Astronomical Observatory of Japan, Mitaka, Tokyo 181-8588. Neutrino-nucleus reactions based on recent structure studies. United States. doi:10.1063/1.4919476.
Suzuki, Toshio, and National Astronomical Observatory of Japan, Mitaka, Tokyo 181-8588. Fri . "Neutrino-nucleus reactions based on recent structure studies". United States. doi:10.1063/1.4919476.
@article{osti_22391798,
title = {Neutrino-nucleus reactions based on recent structure studies},
author = {Suzuki, Toshio and National Astronomical Observatory of Japan, Mitaka, Tokyo 181-8588},
abstractNote = {Neutrino-nucleus reactions are studied with the use of new shell model Hamiltonians, which have proper tensor components in the interactions and prove to be successful in the description of Gamow-Teller (GT) strengths in nuclei. The new Hamiltonians are applied to obtain new neutrino-nucleus reaction cross sections in {sup 12}C, {sup 13}C, {sup 56}Fe and {sup 56}Ni induced by solar and supernova neutrinos. The element synthesis by neutrino processes in supernova explosions is discussed with the new cross sections. The enhancement of the production yields of {sup 7}Li, {sup 11}B and {sup 55}Mn is obtained while fragmented GT strength in {sup 56}Ni with two-peak structure is found to result in smaller e-capture rates at stellar environments. The monopole-based universal interaction with tensor force of π+ρ meson exchanges is used to evaluate GT strength in {sup 40}Ar and ν-induced reactions on {sup 40}Ar. It is found to reproduce well the experimental GT strength in {sup 40}Ar.},
doi = {10.1063/1.4919476},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1663,
place = {United States},
year = {2015},
month = {5}
}