ISSN:
1434-601X
Keywords:
23.40-s
;
23.40.Hc
;
21.60.Jz
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Half-lives of the 2νββ decay are calculated in the proton-neutron QRPA for76Ge,82Se,100Mo,128,130Te,136Xe and150Nd. The strength of the particle-particle interaction, which plays a decisive role for a reliable evaluation of the half-lives, is determined from a QRPA calculation of singleβ + decays. The 2ν decay rates calculated with the interaction strength fitted in this way are strongly suppressed and found to be consistent with the existing experimental data. Effects of the ground-state correlations on the suppression are investigated. On the other hand, the present calculation indicates limitations of the QRPA approach.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01294218
Permalink