Beta-decay properties of exotic nuclei and the astrophysical r-process

T. Tachibana; M. Arnould

doi:10.1016/0375-9474(95)00158-W

Beta-decay properties of exotic nuclei and the astrophysical r-process

T. Tachibana^*, M. Arnould

^*Corresponding author for this work

Waseda University Senior High School

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

The r-process abundances are evaluated with the use of three different β-decay models, i.e., the second version of the Gross Theory, the semi-Gross Theory and a QRPA approach. The necessary Q_β-values, as well as the neutron separation energies, are obtained from the TUYY, ETFSI and FRDM mass predictions. A comparison is made among the β-decay half-lives predicted by these β-decay models for the nuclei on a typical r-process path, as well as among the resulting r-process abundances.

Original language	English
Pages (from-to)	c333-c337
Journal	Nuclear Physics, Section A
Volume	588
Issue number	1
DOIs	https://doi.org/10.1016/0375-9474(95)00158-W
Publication status	Published - 1995 May 29

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/0375-9474(95)00158-W

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N2 - The r-process abundances are evaluated with the use of three different β-decay models, i.e., the second version of the Gross Theory, the semi-Gross Theory and a QRPA approach. The necessary Qβ-values, as well as the neutron separation energies, are obtained from the TUYY, ETFSI and FRDM mass predictions. A comparison is made among the β-decay half-lives predicted by these β-decay models for the nuclei on a typical r-process path, as well as among the resulting r-process abundances.

AB - The r-process abundances are evaluated with the use of three different β-decay models, i.e., the second version of the Gross Theory, the semi-Gross Theory and a QRPA approach. The necessary Qβ-values, as well as the neutron separation energies, are obtained from the TUYY, ETFSI and FRDM mass predictions. A comparison is made among the β-decay half-lives predicted by these β-decay models for the nuclei on a typical r-process path, as well as among the resulting r-process abundances.

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Beta-decay properties of exotic nuclei and the astrophysical r-process

Abstract

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