Bounds on compositeness from neutrinoless double {beta} decay

Journal Article · Wed Nov 01 04:00:00 EST 1995 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.52.5308· OSTI ID:118566

Panella, O ^[1]; Srivastava, Y N ^[1]

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1. Dipartimento di Fisica, Universita di Perugia, INFN, Sezione di Perugia, Via A. Pascoli, I-06100 Perugia (Italy)

Assuming the existence of a heavy Majorana neutral particle arising from a composite model scenario we discuss the constraints imposed by present experimental limits of half-life neutrinoless double {beta} decay (0{nu}{beta}{beta}) measurements on the coupling of the heavy composite neutrinos to the gauge bosons. For neutrino masses {ital M}{sub {ital N}}=1 TeV we obtain a rather weak lower bound on the compositeness scale: {Lambda}{ge}0.3 TeV.

• OSTI ID: 118566
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 9 Vol. 52; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
COMPOSITE MODELS
CONSTRAINTS
COUPLING
DOUBLE BETA DECAY
HALF-LIFE
MAJORANA THEORY
NEUTRAL PARTICLES
NEUTRINOS