beta-decay in neutron-deficient Hg, Pb, and Po isotopes
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.
Keywords
Cite
@article{arxiv.nucl-th/0604024,
title = {beta-decay in neutron-deficient Hg, Pb, and Po isotopes},
author = {O. Moreno and P. Sarriguren and R. Alvarez-Rodriguez and E. Moya de Guerra},
journal= {arXiv preprint arXiv:nucl-th/0604024},
year = {2009}
}
Comments
18 pages, 7 figures, to appear in Phys. Rev. C