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Nuclear shape dependence of Gamow-Teller distributions in neutron-deficient Pb isotopes

P. Sarriguren·O. Moreno·R. Alvarez-Rodriguez·E. Moya de Guerra
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Abstract

We study Gamow-Teller strength distributions in the neutron-deficient even isotopes (184-194)Pb in a search for signatures of deformation. The microscopic formalism used is based on a deformed quasiparticle random phase approximation (QRPA) approach, which involves a self-consistent quasiparticle deformed Skyrme Hartree-Fock (HF) basis and residual spin-isospin forces in both the particle-hole and particle-particle channels. By analyzing the sensitivity of the Gamow-Teller strength distributions to the various ingredients in the formalism, we conclude that the beta-decay of these isotopes could be a useful tool to look for fingerprints of nuclear deformation.

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P. Sarriguren, O. Moreno, R. Alvarez-Rodriguez, E. Moya de Guerra. 2005-10-13. Nuclear shape dependence of Gamow-Teller distributions in neutron-deficient Pb isotopes. https://doi.org/10.1103/physrevc.72.054317

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