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beta-decay in neutron-deficient Hg, Pb, and Po isotopes

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

The effect of nuclear deformation on the energy distributions of the Gamow-Teller strength is studied in neutron-deficient Hg, Pb, and Po even isotopes. The theoretical framework is based on a self-consistent deformed Skyrme Hartree-Fock mean field with pairing correlations between like nucleons in BCS approximation and residual spin-isospin interactions treated in the proton-neutron quasiparticle random phase approximation. After a systematic study of the Gamow-Teller strength distributions in the low excitation energy region, relevant for beta-decay, we have identified the best candidates to look for deformation signatures in their beta-decay patterns. beta+ half-lives and total Gamow-Teller strengths B(GT+) and B(GT-) are analyzed as well.

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O. Moreno, P. Sarriguren, R. Alvarez-Rodriguez, E. Moya de Guerra. 2006-04-11. beta-decay in neutron-deficient Hg, Pb, and Po isotopes. https://doi.org/10.1103/physrevc.73.054302

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