Abstract
After identifying the nuclei in the and regions for which -decay rates have the greatest effect on weak and main -process abundance patterns, we apply the finite-amplitude method (FAM) with Skyrme energy-density functionals (EDFs) to calculate -decay half-lives of those nuclei in the quasiparticle random-phase approximation (QRPA). We use the equal filling approximation to extend our implementation of the charge-changing FAM, which incorporates pairing correlations and allows axially symmetric deformation, to odd- and odd-odd nuclei. Repeated calculations with nuclei and multiple EDFs show a spread of 1.9–3.3 in -decay half-lives, with differences in calculated values playing an important role. We compare our results with those of previous work and investigate their implications for -process simulations.
10 More- Received 22 June 2016
- Revised 3 September 2016
DOI:https://doi.org/10.1103/PhysRevC.94.055802
©2016 American Physical Society