β-Decay half-lives at finite temperatures for N=82 isotones

F. Minato, K. Hagino

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Using the finite-temperature quasiparticle random phase approximation (FTQRPA) on the basis of the finite-temperature Skyrme-Hartree-Fock + Bardeen-Cooper-Schrieffer (BCS) method, we study β - decay half-lives for even-even neutron magic nuclei with N=82 in a finite-temperature environment. We find that the β - decay half-life first decreases as the temperature increases for all the nuclei we study, although the thermal effect is found to be small at temperatures relevant to r-process nucleosynthesis. Our calculations indicate that the half-life begins to increase at high temperatures for open-shell nuclei. We discuss this behavior in connection to the pairing phase transition.

Original languageEnglish
Article number065808
JournalPhysical Review C - Nuclear Physics
Volume80
Issue number6
DOIs
Publication statusPublished - 2009 Dec 28

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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