Some New Contributions to Neutrinoless Double beta -Decay in an SU(2) X U(1) Model

摘要

An SU(2) x U(1) model having both Dirac and Majorana mass terms for the neutrinos, with an extended Higgs sector without natural flavor conservation is considered. Under these conditions, it is shown that for a certain range of the mass parameters of the model, some new contributions become important for the neutrinoless double beta -decay ( beta beta )o nu . (Atomindex citation 16:008687)