Naslov
Nuclear moments for the neutrinoless double beta decay II

Autori
Barbero, C. ; Krmpotić, F. ; Mariano, A. ; Tadić, Dubravko

Izvornik
Nuclear Physics A (0375-9474) 650 (1999), 4; 485-497

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
neutrinoless double beta decay; nuclear form factors; neutrino mass

Sažetak
The recently developed formalism for the evaluation of nuclear form factors in neutrinoless double beta decay is applied to $^{;48};Ca$, $^{;76};Ge$, $^{;82};Se$, $^{;100};Mo$, $^{;128};Te$ and $^{;130};Te$ nuclei. Explicit analytical expressions that follows from this theoretical development, in the single mode model for the decay of $^{;48};Ca$, 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 $delta$-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.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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