Correlations and the neutrinoless double beta decay
- Departamento de Fisica Teorica, and IFT, UAM-CSIC, Universidad Autonoma de Madrid, 28049-Madrid (Spain)
- IPHC, IN2P3-CNRS/Universite Louis Pasteur, 67037-Strasbourg (France)
We explore the influence of the deformation on the nuclear matrix elements of the neutrinoless double beta decay (NME), concluding that the difference in deformation -or more generally on the amount of quadrupole correlations- between parent and grand daughter nuclei quenchs strongly the decay. We discuss how varies the nuclear matrix element of {sup 76}Ge decay when the wave functions of the two nuclei involved in the transition are constrained to reproduce the experimental occupancies. In the Interacting Shell Model description the value of the NME is enhanced about 15% compared to previous calculations, whereas in the QRPA the NME's are reduced by 20%-30%, thus, the discrepancies between both approaches diminish.
- OSTI ID:
- 21322978
- Journal Information:
- AIP Conference Proceedings, Vol. 1180, Issue 1; Conference: Workshop on circulation of double-beta-decay matrix, Prague (Czech Republic), 15-19 Jun 2009; Other Information: DOI: 10.1063/1.3266110; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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