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 language | English |
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Article number | 065808 |
Journal | Physical Review C - Nuclear Physics |
Volume | 80 |
Issue number | 6 |
DOIs | |
Publication status | Published - 2009 Dec 28 |
Externally published | Yes |
ASJC Scopus subject areas
- Nuclear and High Energy Physics