https://doi.org/10.1140/epja/i2007-10527-x
Regular Article - Theoretical Physics
Nuclear-structure aspects of the neutrinoless ββ -decays
1
IPHC, IN2P3-CNRS/Université Louis Pasteur, BP 28, F-67037, Strasbourg Cedex 2, France
2
Departamento de Fısica Teórica and IFT-UAM/CSIC, Universidad Autónoma de Madrid, E-28049, Madrid, Spain
* e-mail: alfredo.poves@uam.es
Received:
10
December
2007
Accepted:
17
January
2008
Published online:
25
February
2008
In this article, we analyze some nuclear-structure aspects of the 0ν double-beta decay nuclear matrix elements (NME). We give results for the decays of 48Ca , 76Ge , 82Se , 124Sn , 128Te , 130Te , and 136Xe , using improved effective interactions and valence spaces. We examine the dependence of the NMEs on the effective interaction and the valence space, and analyze the effects of the short-range correlations and the finite size of the nucleon. Finally, we study the influence of the deformation on the values of the NMEs.
PACS: 21.10.-k Properties of nuclei; nuclear energy levels – / 27.40.+z 39 ⩽ A ⩽ 58 – / 21.60.Cs Shell model – / 23.40.-s β decay; double β decay; electron and muon capture –
© Società Italiana di Fisica and Springer-Verlag, 2008
