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.

18 pages, 7 figures, to appear in Phys. Rev. C

Cited by in corpus (11)

• Exotic modes of excitation in atomic nuclei far from stability
• Spin-isospin nuclear response using the existing microscopic Skyrme functionals
• Effects of deformation on the beta-decay patterns of light even-even and odd-mass Hg and Pt isotopes
• Microscopic calculations of weak decays in superheavy nuclei
• On the $\beta$-decay of ${}^{186}$Hg
• Self-consistent calculations of electron-capture decays in Z=118, 119, and 120 superheavy isotopes
• Competition between weak and alpha-decay modes in superheavy nuclei
• Gamow-Teller strength distributions in Xe isotopes
• Bulk and decay properties of neutron-deficient odd-mass Hg isotopes around A = 185
• Re examination of \b{eta} decay in Hg, Pb and Po Isotopes
• Investigation of Gamow-Teller strength of 186Hg within deformed pn-QRPA