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

Journal Article · Mon Feb 01 04:00:00 EST 1993 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.47.757· OSTI ID:6785694

Suhonen, J; Hammaren, E ^[1]

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1. Department of Physics, University of Jyvaeskylae, P.O. Box 35, SF-40351 Jyvaeskylae (Finland)

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 ([ital m][sub [nu]][gt]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 [sup 76]Ge[r arrow][sup 76]Se decay is used to obtain an upper limit for a new kind of effective right-handed coupling within the two scenarios.

• OSTI ID: 6785694
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 47:2; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663210* -- Ground-State Radioactivity-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALGEBRAIC CURRENTS
BETA DECAY
BETA-MINUS DECAY
CHARGED CURRENTS
CURRENTS
DAYS LIVING RADIOISOTOPES
DECAY
DOUBLE BETA DECAY
ELEMENTARY PARTICLES
EVEN-EVEN NUCLEI
FERMIONS
GERMANIUM 76
GERMANIUM ISOTOPES
HALF-LIFE
INTERMEDIATE MASS NUCLEI
ISOTOPES
LEPTONS
LIMITING VALUES
MASS
MASSLESS PARTICLES
NEUTRINOS
NUCLEAR DECAY
NUCLEI
PROPAGATOR
RADIOISOTOPES
REST MASS
STABLE ISOTOPES
WEAK CHARGED CURRENTS
YEARS LIVING RADIOISOTOPES