Study of. pi. /sup 0/. -->. mu. (epsilon/sup + -/) decays

Journal Article · Tue May 01 04:00:00 EDT 1984 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.29.1954· OSTI ID:6397299

Herczeg, P; Hoffman, C M

We deduce an experimental upper bound (1/2)(GAMMA(..pi../sup 0/..--> mu../sup +/e/sup -/) +GAMMA(..pi../sup 0/..--> mu../sup -/e/sup +/))/ GAMMA(..pi../sup 0/..-->..all) <7 x 10/sup -8/ (90% C.L.) on the branching ratios of ..pi../sup 0/..--> mu../sup + -/e/sup - +/ decays from available data. We consider the existing constraints on the underlying muon-number-violating interaction and find that the present experimental information on ..mu../sup -/..-->..e/sup -/ conversion in sulfur implies an upper limit on the ..pi../sup 0/..--> mu../sup + -/e/sup - +/ branching ratios which is not likely to be larger than 10/sup -15/.

• Research Organization: Theoretical and Medium-Energy Physics Divisions, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
• OSTI ID: 6397299
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 29:9; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645203* -- High Energy Physics-- Particle Interactions &amp; Properties-Theoretical-- Weak Interactions &amp; Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
BASIC INTERACTIONS
BOSONS
BRANCHING RATIO
DECAY
ELECTRONS
ELEMENTARY PARTICLES
FERMIONS
HADRONS
HIGGS BOSONS
INTERACTIONS
INTERMEDIATE BOSONS
LEPTON NUMBER
LEPTONIC DECAY
LEPTONS
LIE GROUPS
LIMITING VALUES
MESONS
MUON NUMBER
MUONS
PAIR PRODUCTION
PARTICLE DECAY
PIONS
PIONS NEUTRAL
POSITRONS
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
SU GROUPS
SU-2 GROUPS
SYMMETRY GROUPS
WEAK INTERACTIONS
WEAK PARTICLE DECAY