Massive neutrinos and right-handed weak currents in double beta decay

J. Suhonen and E. Hammarén
Phys. Rev. C 47, 757 – Published 1 February 1993
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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 (mν>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 7676Se 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

Authors & Affiliations

J. Suhonen and E. Hammarén

  • Department of Physics, University of Jyväskylä, P.O. Box 35, SF-40351 Jyväskylä, Finland

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Issue

Vol. 47, Iss. 2 — February 1993

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