Nuclear deformation and the double-beta decay
Journal Article
·
· Physics of Atomic Nuclei
- Institut fuer Theoretische Physik der Universitaet Tuebingen, Tuebingen (Germany)
- Department of Nuclear Physics, Comenius University, Bratislava (Slovakia)
The effect of deformation on the two-neutrino double-beta decay (2{nu}{beta}{beta} decay) for ground-state transition {sup 76}Ge {yields} {sup 76}Se is studied in the framework of the deformed QRPA with separable Gamow-Teller residual interaction. A new suppression mechanism of the 2{nu}{beta}{beta}-decay matrix element based on the difference in deformations of the initial and final nuclei is reported. An advantage of this suppression mechanism in comparison with that associated with ground-state correlations is that it allows a simultaneous description of the single-{beta} and the 2{nu}{beta}{beta} decay.
- OSTI ID:
- 20596752
- Journal Information:
- Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 6 Vol. 67; ISSN 1063-7788; ISSN PANUEO
- Country of Publication:
- United States
- Language:
- English
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