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

AuthorsMoreno, Óscar; Sarriguren, Pedro ; Álvarez-Rodríguez, Raquel ; Moya de Guerra, Elvira
Keywords[PACS] Nuclear Density Functional Theory and extensions (includes Hartree–Fock and random-phase approximations)
[PACS] β decay; double β decay; electron and muon capture
[PACS] Properties of specific nuclei listed by mass ranges: 150 ≤ A ≤ 189
[PACS] Properties of specific nuclei listed by mass ranges: 190 ≤ A ≤ 219
Issue Date3-May-2006
PublisherAmerican Physical Society
CitationPhysical Review C 73(5): 054302 (2006)
AbstractThe 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 β+ decay, we have identified the best candidates to look for deformation signatures in their β+-decay patterns. β+ half-lives and total Gamow-Teller strengths B(GT±) are analyzed as well.
Description11 pages, 3 tables, 7 figures.-- PACS nrs.: 21.60.Jz; 23.40.-s; 27.70.+q; 27.80.+w.-- ArXiv pre-print available at: http://arxiv.org/abs/nucl-th/0604024v1
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevC.73.054302
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