O. Moreno, R. Alvarez-Rodriguez, P. Sarriguren, E. Moya de Guerra, J. M. Udias, J. R. Vignote
Published 2006-10-16Version 1
The energy distributions of the Gamow-Teller 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 BCS approximation. The Gamow-Teller transitions are obtained within a quasiparticle random phase approximation (QRPA) approach using a residual spin-isospin interaction in the particle-hole and particle-particle channels. We then discuss the pairing BCS treatment and the determination of the ph and pp residual interaction coupling constants. We study the GT+ and GT- strength distributions for the equilibrium nuclear shapes, which are an essential information for studies of charge-exchange reactions and double-beta processes involving these isotopes.
Comments: 15 pages, 5 figures. To appear in Phys Rev C
Journal: Phys.Rev. C74 (2006) 054308
On Gamow-Teller strength distributions for $ββ$-decaying nuclei within continuum-QRPA
Gamow-Teller strength distributions for double-beta-decaying nuclei within continuum-QRPA
Gamow-Teller strength distributions at finite temperatures and electron capture in stellar environments
