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

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

2003-03-20

arxiv.org/abs/nucl-th/0303053v1

Physics

Nuclear Physics

Nuclear Theory

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

Scientific paper

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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