Abstract
We investigate effects of neutron-proton () pairing correlations on the Gamow-Teller (GT) transition of by explicitly taking into account deformation effects. Our calculation is performed by a deformed quasiparticle random phase approximation (DQRPA) which includes the deformation at the Bardeen-Cooper-Schrieffer and RPA stage. In this paper, we include the pairing as well as neutron-neutron () and proton-proton () paring correlations to the DQRPA. Our new formalism is applied to the GT transition of well-known deformed Mg isotopes. The pairing effect is found to affect more or less the GT distribution of and . But the deformation effect turns out to be much larger than the paring effect because the Fermi surfaces smear more widely by the deformation rather than the pairing correlations. Correlations between the deformation and the pairing effects and their ambiguities are also discussed with the comparison to experimental GT strength data by triton and beams.
4 More- Received 2 August 2016
- Revised 9 October 2016
DOI:https://doi.org/10.1103/PhysRevC.94.054320
©2016 American Physical Society