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

Journal Article · Mon May 15 00:00:00 EDT 2006 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.73.054302· OSTI ID:20771523

Moreno, O; Sarriguren, P; Alvarez-Rodriguez, R ^[1]; Guerra, E Moya de ^[2]

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1. Instituto de Estructura de la Materia, Consejo Superior de Investigaciones Cientificas, Serrano 123, E-28006 Madrid (Spain)
2. Departamento de Fisica Atomica, Molecular y Nuclear, Facultad de Ciencias Fisicas, Universidad Complutense de Madrid, E-28040 Madrid (Spain)

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}{sup +} decay, we have identified the best candidates to look for deformation signatures in their {beta}{sup +}-decay patterns. {beta}{sup +} half-lives and total Gamow-Teller strengths B(GT{sup {+-}}) are analyzed as well.

• OSTI ID: 20771523
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 73, Issue 5; Other Information: DOI: 10.1103/PhysRevC.73.054302; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BCS THEORY
BETA DECAY
CORRELATIONS
DISTRIBUTION
ENERGY SPECTRA
EXCITATION
GAMOW-TELLER RULES
HALF-LIFE
HARTREE-FOCK METHOD
ISOSPIN
LEAD ISOTOPES
MEAN-FIELD THEORY
MERCURY ISOTOPES
NEUTRONS
NUCLEAR DEFORMATION
POLONIUM ISOTOPES
PROTONS
RANDOM PHASE APPROXIMATION
SKYRME POTENTIAL
SPIN