Abstract
In this work, we calculate the matrix elements for the decay of using the deformed quasiparticle random-phase approximation -QRPA) method. We adopted the approach introduced by Rodin and Faessler [Phys. Rev. C 84, 014322 (2011)] and Simkovic et al. [Phys. Rev. C 87, 045501 (2013)] to restore the isospin symmetry by enforcing . We found that with this restoration, the Fermi matrix elements are reduced in the strongly deformed by about 15 to 20%, while the more important Gamow-Teller matrix elements remain the same. The results of an enlarged model space are also presented. This enlargement increases the total (Fermi plus Gamow-Teller) matrix elements by less than 10%.
- Received 10 August 2015
DOI:https://doi.org/10.1103/PhysRevC.92.044301
©2015 American Physical Society