Gamow-Teller strength distributions in 76Ge and 76Se from deformed QRPA

2003/03/20 by P. Sarriguren, E. Moya de Guerra, Sarriguren, P. +9
Physics and Astronomy · #FOS: Physical sciences #Nuclear Theory (nucl-th) #nucl-th

paper · pdf · doi:10.48550/arxiv.nucl-th/0303053

18 pages, 8 figures, 4 tables. To appear in Phys. Rev. C

arxiv created 2003/03/20 · arxiv updated 2009/12/01

Abstract

We study Gamow-Teller strength distributions of 76Ge and 76Se within a deformed QRPA formalism, which includes residual spin-isospin forces in the particle-hole and particle-particle channels. We consider two different methods to construct the quasiparticle basis, a selfconsistent approach based on a deformed Hartree-Fock calculation with density-dependent Skyrme forces and a more phenomenological approach based on a deformed Woods-Saxon potential. Both methods contain pairing correlations in the BCS approach. We discuss the sensitivity of Gamow-Teller strength distributions to the deformed mean field and residual interactions.

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