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Title: Neutrino-induced reactions on {sup 56}Fe and {sup 56}Ni, and production of {sup 55}Mn in population III stars

Abstract

Neutrino-induced reactions on {sup 56}Fe and {sup 56}Ni are investigated based on a new shell-model Hamiltonian for pf shell. The calculated charged current reaction cross section on {sup 56}Fe induced by decay-at-rest (DAR) neutrinos is shown to be consistent with the observation. The Gamow-Teller strength in {sup 56}Ni is found to be more spread compared to previous calculations and result in a considerably large branching ratio for the proton knock-out channel. As a consequence of this, the production yields of heavy elements such as {sup 55}Mn in population III stars are shown to be enhanced for the new Hamiltonian.

Authors:
 [1];  [2];  [3]; ;  [4];  [4];  [5];  [4]
  1. Department of Physics, College of Humanities and Sciences, Nihon University Sakurajosui 3-25-40, Setagaya-ku, Tokyo 156-8550 (Japan)
  2. Center for Mathematical Sciences, University of Aizu, Aizu-Wakamatsu, Fukushima (Japan)
  3. Department of Physics, Chiba Institute of Technology, Narashino, Chiba 275-0023 (Japan)
  4. Department of Astronomy, Graduate School of Science, University of Tokyo, Bunkyo-ku, Tokyo 113-0033 (Japan)
  5. Department of Physics, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan)
Publication Date:
OSTI Identifier:
21289896
Resource Type:
Journal Article
Journal Name:
Physical Review. C, Nuclear Physics
Additional Journal Information:
Journal Volume: 79; Journal Issue: 6; Other Information: DOI: 10.1103/PhysRevC.79.061603; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2813
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; BRANCHING RATIO; CHARGED CURRENTS; COMPUTERIZED SIMULATION; CROSS SECTIONS; GAMOW-TELLER RULES; HAMILTONIANS; IRON 56; MANGANESE 55; NEUTRINOS; NICKEL 56; PROTONS; SHELL MODELS; STARS

Citation Formats

Suzuki, Toshio, Center for Nuclear Study, University of Tokyo, Hirosawa, Wako-shi, Saitama 351-0198, Honma, Michio, Higashiyama, Koji, Yoshida, Takashi, Umeda, Hideyuki, Kajino, Toshitaka, National Astronomical Observatory of Japan, Mitaka, Tokyo 181-8588, Otsuka, Takaharu, Center for Nuclear Study, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, RIKEN, Hirosawa, Wako-shi, Saitama 351-0198, Nomoto, Ken'ichi, and Institute for the Physics and Mathematics of the Universe, University of Tokyo, Chiba 277-8582. Neutrino-induced reactions on {sup 56}Fe and {sup 56}Ni, and production of {sup 55}Mn in population III stars. United States: N. p., 2009. Web. doi:10.1103/PHYSREVC.79.061603.
Suzuki, Toshio, Center for Nuclear Study, University of Tokyo, Hirosawa, Wako-shi, Saitama 351-0198, Honma, Michio, Higashiyama, Koji, Yoshida, Takashi, Umeda, Hideyuki, Kajino, Toshitaka, National Astronomical Observatory of Japan, Mitaka, Tokyo 181-8588, Otsuka, Takaharu, Center for Nuclear Study, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, RIKEN, Hirosawa, Wako-shi, Saitama 351-0198, Nomoto, Ken'ichi, & Institute for the Physics and Mathematics of the Universe, University of Tokyo, Chiba 277-8582. Neutrino-induced reactions on {sup 56}Fe and {sup 56}Ni, and production of {sup 55}Mn in population III stars. United States. https://doi.org/10.1103/PHYSREVC.79.061603
Suzuki, Toshio, Center for Nuclear Study, University of Tokyo, Hirosawa, Wako-shi, Saitama 351-0198, Honma, Michio, Higashiyama, Koji, Yoshida, Takashi, Umeda, Hideyuki, Kajino, Toshitaka, National Astronomical Observatory of Japan, Mitaka, Tokyo 181-8588, Otsuka, Takaharu, Center for Nuclear Study, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, RIKEN, Hirosawa, Wako-shi, Saitama 351-0198, Nomoto, Ken'ichi, and Institute for the Physics and Mathematics of the Universe, University of Tokyo, Chiba 277-8582. 2009. "Neutrino-induced reactions on {sup 56}Fe and {sup 56}Ni, and production of {sup 55}Mn in population III stars". United States. https://doi.org/10.1103/PHYSREVC.79.061603.
@article{osti_21289896,
title = {Neutrino-induced reactions on {sup 56}Fe and {sup 56}Ni, and production of {sup 55}Mn in population III stars},
author = {Suzuki, Toshio and Center for Nuclear Study, University of Tokyo, Hirosawa, Wako-shi, Saitama 351-0198 and Honma, Michio and Higashiyama, Koji and Yoshida, Takashi and Umeda, Hideyuki and Kajino, Toshitaka and National Astronomical Observatory of Japan, Mitaka, Tokyo 181-8588 and Otsuka, Takaharu and Center for Nuclear Study, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033 and RIKEN, Hirosawa, Wako-shi, Saitama 351-0198 and Nomoto, Ken'ichi and Institute for the Physics and Mathematics of the Universe, University of Tokyo, Chiba 277-8582},
abstractNote = {Neutrino-induced reactions on {sup 56}Fe and {sup 56}Ni are investigated based on a new shell-model Hamiltonian for pf shell. The calculated charged current reaction cross section on {sup 56}Fe induced by decay-at-rest (DAR) neutrinos is shown to be consistent with the observation. The Gamow-Teller strength in {sup 56}Ni is found to be more spread compared to previous calculations and result in a considerably large branching ratio for the proton knock-out channel. As a consequence of this, the production yields of heavy elements such as {sup 55}Mn in population III stars are shown to be enhanced for the new Hamiltonian.},
doi = {10.1103/PHYSREVC.79.061603},
url = {https://www.osti.gov/biblio/21289896}, journal = {Physical Review. C, Nuclear Physics},
issn = {0556-2813},
number = 6,
volume = 79,
place = {United States},
year = {Mon Jun 15 00:00:00 EDT 2009},
month = {Mon Jun 15 00:00:00 EDT 2009}
}