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Nuclear moments for the neutrinoless double beta decay II

✍ Scribed by C. Barbero; F. Krmpotić; A. Mariano; D. Tadić

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
594 KB
Volume
650
Category
Article
ISSN
0375-9474

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✦ Synopsis

The recently developed formalism for the evaluation of nuclear form factors in neutrinoless double beta decay is applied to 48Ca, 76Ge, 82Se, l°°Mo, 128Te and ~3°Te nuclei. Explicit analytical expressions that follows from this theoretical development, in the single-mode model for the decay of 48Ca, have been worked out. They are useful both for testing the full numerical calculations, and for analytically checking the consistency with other formalisms. Large configuration space calculations are compared with previous studies, where alternative formulations were used. Yet, besides using the G-matrix as residual interaction, we here use a simple 8-force. Attention is paid to the connected effects of the short range nuclear correlations and the finite nucleon size. Constraints on lepton number violating terms in the weak Hamiltonian (effective neutrino Majorana mass and effective right-handed current coupling strengths) are deduced.

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