Gamow-Teller strength distributions in Xe isotopes

Journal Article · Wed Nov 15 04:00:00 EST 2006 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.74.054308· OSTI ID:20864024

Moreno, O; Alvarez-Rodriguez, R; Sarriguren, P ^[1]; Guerra, E Moya de; Vignote, J R ^[1]; Udias, J M ^[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. Avenida Complutense s/n, E-28040 Madrid (Spain)

The energy distributions of the Gamow-Teller (GT) strength are studied for even-even Xe isotopes with mass numbers from 124 to 142. A self-consistent microscopic formalism is used to generate the single-particle basis, using a deformed Skyrme Hartree-Fock mean field with pairing correlations in the BCS approximation. The GT transitions are obtained within a quasiparticle random phase approximation approach using a residual spin-isospin interaction in the particle-hole (ph) and particle-particle (pp) channels. We then discuss the pairing BCS treatment and the determination of the ph and pp residual interaction coupling constants. We study the GT{sup +} and GT{sup -} strength distributions for the equilibrium nuclear shapes, which comprise essential information for studies of charge-exchange reactions and double-{beta} processes involving these isotopes.

• OSTI ID: 20864024
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 5 Vol. 74; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CHARGE-EXCHANGE REACTIONS
CORRELATIONS
COUPLING CONSTANTS
DISTRIBUTION
ENERGY SPECTRA
EQUILIBRIUM
GAMOW-TELLER RULES
HARTREE-FOCK METHOD
ISOSPIN
MEAN-FIELD THEORY
PARTICLE-HOLE MODEL
RANDOM PHASE APPROXIMATION
RESIDUAL INTERACTIONS
SKYRME POTENTIAL
SPIN
XENON ISOTOPES