STUDY OF SEVERAL DOUBLE-BETA-DECAYING NUCLEI USING THE RENORMALIZED PROTON-NEUTRON QUASI-PARTICLE RANDOM-PHASE-APPROXIMATION

Authors
TOIVANEN J SUHONEN J
Citation
J. Toivanen et J. Suhonen, STUDY OF SEVERAL DOUBLE-BETA-DECAYING NUCLEI USING THE RENORMALIZED PROTON-NEUTRON QUASI-PARTICLE RANDOM-PHASE-APPROXIMATION, Physical review. C. Nuclear physics, 55(5), 1997, pp. 2314-2323
Citations number
31
Categorie Soggetti
Physics, Nuclear
Journal title
Physical review. C. Nuclear physics → ACNP
ISSN journal
05562813
Volume
55
Issue
5
Year of publication
1997
Pages
2314 - 2323
Database
ISI
SICI code
0556-2813(1997)55:5<2314:SOSDNU>2.0.ZU;2-V
Abstract
The renormalized proton-neutron quasiparticle random-phase approximati on model (RQRPA) has been used to calculate double-beta-decay matrix e lements and associated transition half-lives for two-neutrino double b eta decay of parent nuclei Ge-76, Kr-78, Se-82, Zr-96, Cd-106, and Te- 130 to the ground state and excited one- and two-phonon states of thei r daughter nuclei. The results are compared to ordinary proton-neutron QRPA and experiments. In addition, the violation of the Ikeda sum rul e in the RQRPA is examined and discussed.