The r-process element abundance with a realistic fission fragment mass distribution

S. Chiba, H. Koura, T. Maruyama, M. Ohta, S. Tatsuda, T. Wada, Takahiro Tachibana, K. Sumiyoshi, K. Otsuki, T. Kajino

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

Effect of the β-delayed fission in r-process abundance is investigated with a realistic model for the fission fragment mass distribution (FFMD). The data base for the FFMD is constructed based on the two-center shell model and multi-dimensional Langevin calculation. The β-decay rates including neutron emission and β-delayed fission are also newly calculated with 2nd version of the the gross theory. The differences appeared in the final element abundance calculated with and without fission process, with different β-delayed fission rates are demonstrated.

Original languageEnglish
Title of host publicationOrigin of Matter and Evolution of Galaxies - 10th International Symposium on Origin of Matter and Evolution of Galaxies
Subtitle of host publicationFrom the Dawn of Universe to the Formation of Solar System, OMEG 2007
PublisherAmerican Institute of Physics Inc.
Pages162-167
Number of pages6
Volume1016
ISBN (Electronic)9780735405370
DOIs
Publication statusPublished - 2008 Jan 1
Event10th International Symposium on Origin of Matter and Evolution of Galaxies: From the Dawn of Universe to the Formation of Solar System, OMEG 2007 - Sapporo, Japan
Duration: 2007 Dec 42007 Dec 7

Other

Other10th International Symposium on Origin of Matter and Evolution of Galaxies: From the Dawn of Universe to the Formation of Solar System, OMEG 2007
CountryJapan
CitySapporo
Period07/12/407/12/7

Keywords

  • Abundance
  • FFMD
  • Fission
  • Nucleosynthesis
  • R-process
  • β3-delayed fission

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Chiba, S., Koura, H., Maruyama, T., Ohta, M., Tatsuda, S., Wada, T., Tachibana, T., Sumiyoshi, K., Otsuki, K., & Kajino, T. (2008). The r-process element abundance with a realistic fission fragment mass distribution. In Origin of Matter and Evolution of Galaxies - 10th International Symposium on Origin of Matter and Evolution of Galaxies: From the Dawn of Universe to the Formation of Solar System, OMEG 2007 (Vol. 1016, pp. 162-167). American Institute of Physics Inc.. https://doi.org/10.1063/1.2943568