Extended quasiparticle random phase approximation at finite temperatures: Calculation of single beta-decay Fermi transitions - art. no. 054318

Citation
O. Civitarese et al., Extended quasiparticle random phase approximation at finite temperatures: Calculation of single beta-decay Fermi transitions - art. no. 054318, PHYS REV C, 6205(5), 2000, pp. 4318
Citations number
18
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW C
ISSN journal
05562813 → ACNP
Volume
6205
Issue
5
Year of publication
2000
Database
ISI
SICI code
0556-2813(200011)6205:5<4318:EQRPAA>2.0.ZU;2-M
Abstract
The formalism of the quasiparticle random phase approximation, extended to include scattering terms in the equation of motion, is used to describe all owed single beta -decay transitions of Fermi type at finite temperatures. T he calculations were performed by using a realistic single particle basis a nd a separable two body interaction in the proton-neutron channel. The beha vior of the Ikeda sum rule is studied and it is found that this sum rule is strictly conserved in the presence of particle-particle and hole-hole corr elations. As an example on the validity of the formalism the case of Fermi transitions in Ge-76 is considered.