Abstract
The contributions of right-handed weak currents in neutrinoless double beta decay are studied taking explicitly into account the mass corrections to the intermediate neutrino propagator. Due to these corrections the right-handed currents become effective even if all neutrinos are light (>10 MeV). Explicit expressions for the neutrino-momentum integrals and the decay half-life are derived. As an example two neutrino-mass scenarios containing the hypothetical 17-keV neutrino are discussed. The experimental half-life of the Se decay is used to obtain an upper limit for a new kind of effective right-handed coupling within the two scenarios.
- Received 27 July 1992
DOI:https://doi.org/10.1103/PhysRevC.47.757
©1993 American Physical Society