Gamow-Teller strength distributions in Xe isotopes
Abstract
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.
Cite
@article{arxiv.nucl-th/0610064,
title = {Gamow-Teller strength distributions in Xe isotopes},
author = {O. Moreno and R. Alvarez-Rodriguez and P. Sarriguren and E. Moya de Guerra and J. M. Udias and J. R. Vignote},
journal= {arXiv preprint arXiv:nucl-th/0610064},
year = {2009}
}
Comments
15 pages, 5 figures. To appear in Phys Rev C