Muonium to antimuonium conversion and the decay. mu. sup + r arrow e sup +. nu. sub e. nu. sub. mu. in left-right symmetric models

Journal Article · Mon Oct 26 04:00:00 EST 1992 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.69.2475· OSTI ID:6972299

Herczeg, P ^[1]; Mohapatra, R N ^[2]

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1. Theoretical Division, Los Alamos National Laboratory, Los Alamos (New Mexico, United States)
2. Department of Physics and Astronomy, University of Maryland, College Park, Maryland 20742 (United States)

We show that in the minimal left-right symmetric model with triplet Higgs bosons the range of the muon neutrino mass for which {nu}{sub {mu}} is required by cosmological considerations to be unstable can be probed by muonium to antimuonium conversion ({ital M}{r arrow}{ital {bar M}}) and/or by the exotic muon decay {mu}{sup +}{r arrow}{ital e}{sup +} {bar {nu}}{sub {ital e}}{nu}{sub {mu}}. We point out that if all the leptonic mixing matrices are hierarchical and the Dirac masses of the neutrinos are equal to the masses of the corresponding charged leptons, there is a lower bound in this range for the rates of both of these processes. We find {vert bar}{ital G}{sub {ital M}{ital {bar M}}}{vert bar}{approx gt}7{times}10{sup {minus}5}{ital G}{sub {ital F}} and {vert bar}{ital G}{sub {mu}}{sup ({ital e})}{vert bar}{approx gt}2{times}10{sup {minus}4}{ital G}{sub {ital F}} for the strength of the {ital M}{r arrow}{ital {bar M}} and {mu}{sup +}{r arrow}{ital e}{sup +} {bar {nu}}{sub {ital e}}{nu}{sub {mu}} interactions.

• OSTI ID: 6972299
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 69:17; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

662120 -- General Theory of Particles & Fields-- Symmetry
Conservation Laws
Currents & Their Properties-- (1992-)
662430* -- Properties of Leptons-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
BASIC INTERACTIONS
CHIRAL SYMMETRY
DECAY
EIGENSTATES
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
HIGGS BOSONS
INTERACTIONS
LAGRANGIAN FIELD THEORY
LEPTONIC DECAY
LEPTONS
LIMITING VALUES
MASS
MASSLESS PARTICLES
MATTER
MUONIUM
MUONS
MUONS PLUS
NEUTRINOS
PARTICLE DECAY
POSTULATED PARTICLES
QUANTUM FIELD THEORY
SYMMETRY
WEAK INTERACTIONS
WEAK PARTICLE DECAY