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.

arXiv comment18 pages, 7 figures, to appear in Phys. Rev. C

References in corpus (10)

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• Deformation of the N=Z nucleus 76Sr using beta-decay studies
• Shapes and beta decay in proton rich Ge, Se, Kr and Sr isotopes
• Beta decay and shape isomerism in 74Kr
• Spin-isospin excitations and beta+/EC half-lives of medium-mass deformed nuclei
• Beta-decay in odd-A and even-even proton-rich Kr isotopes
• Unveiling the origin of shape coexistence in lead isotopes
• Shape Coexistence in the Relativistic Hartree-Bogoliubov approach
• Self-consistent approach to deformation of intruder states in neutron-deficient Pb and Po
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Cited by in corpus (16)

• Exotic modes of excitation in atomic nuclei far from stability
• Mean field study of structural changes in Pt isotopes with the Gogny interaction
• Spin-isospin nuclear response using the existing microscopic Skyrme functionals
• Shape evolution and the role of intruder configurations in Hg isotopes within the interacting boson model based on a Gogny energy density functional
• Nuclear ${\beta }^{+}$/EC decays in covariant density functional theory and the impact of isoscalar proton-neutron pairing
• 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
• Shapes of the ${}^{192,190}$Pb ground states from beta decay studies using the total absorption technique
• On the $\beta$-decay of ${}^{186}$Hg
• Gamow-Teller strength distributions in Xe isotopes
• 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
• Electron-capture decay in isotopic transfermium chains from self-consistent calculations
• Re examination of \b{eta} decay in Hg, Pb and Po Isotopes
• Bulk and decay properties of neutron-deficient odd-mass Hg isotopes around A = 185
• Investigation of Gamow-Teller strength of 186Hg within deformed pn-QRPA