Competition of deformation and neutron-proton pairing in Gamow-Teller transitions for Ni-56,Ni-58 and Ni-62,Ni-64
- Authors
- Ha, Eunja; Cheoun, Myung-Ki
- Issue Date
- Oct-2019
- Publisher
- IOP PUBLISHING LTD
- Keywords
- Gamow-Teller transition; deformed QRPA; Ni isotopes
- Citation
- JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, v.46, no.10
- Journal Title
- JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
- Volume
- 46
- Number
- 10
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/35130
- DOI
- 10.1088/1361-6471/ab3591
- ISSN
- 0954-3899
- Abstract
- We investigate effects of unlike-pairing correlations by neutron-proton (np) pairs on Gamow-Teller strength distributions for even-even Ni isotopes, <SUP>56,58,60,62,64</SUP>Ni, by taking into account nuclear deformation in a deformed Woods-Saxon mean field. Our calculations based on a deformed Bardeen- Cooper-Schriffer approach which preserves the axial and the time-reversal symmetry are performed within a deformed quasiparticle random phase approximation, in which we explicitly include the deformation and the unlike-pairing as well as the like-pairing correlations by neutron-neutron and proton- proton pairs. Competition of these two effects, the deformation and the pairing correlations, is shown to be able to affect more or less the GT strength distributions of the even-even Ni isotopes.
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Collections - College of Natural Sciences > Department of Physics > 1. Journal Articles
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