Neutrinoless double beta decay within the quasiparticle random-phase approximation with proton-neutron pairing

Journal Article · Thu Feb 01 04:00:00 EST 1996 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.53.695· OSTI ID:278836

Pantis, G; Simkovic, F; Vergados, J D; Faessler, A ^[1]

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1. Theoretical Physics Section, University of Ioannina, GR 451 10, Ioannina (Greece)

We have investigated the role of proton-neutron pairing in the context of the quasiparticle random phase approximation formalism. This way the neutrinoless double beta decay matrix elements of the experimentally interesting {ital A} = 48, 76, 82, 96, 100, 116, 128, 130, and 136 systems have been calculated. We have found that the inclusion of proton-neutron pairing influences the neutrinoless double beta decay rates significantly, in all cases allowing for larger values of the expectation value of light neutrino masses. Using the best presently available experimental limits on the half lifetime of neutrinoless double beta decay we have extracted the limits on lepton number violating parameters. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 278836
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 2 Vol. 53; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BETA DECAY
HALF-LIFE
LEPTON NUMBER
LIFETIME
MATRIX ELEMENTS
PAIRING INTERACTIONS
PROTON-NEUTRON INTERACTIONS
QUASI PARTICLES
RANDOM PHASE APPROXIMATION
VIOLATIONS