Improved limit for conversion of (. mu. /sup +/e/sup -/) to (. mu. /sup -/e/sup +/)

Conference · Sun Nov 20 04:00:00 EST 1988 · AIP Conf. Proc.; (United States)

OSTI ID:6449255

Marshall, G M; Beer, G A; Bowen, T; Fry, C A; Gelbart, Z; Halverson, P G; Heinrich, B; Huber, T M; Janissen, A C; Kendall, K R; others, and

An improved upper limit is reported for muonium (..mu../sup +/e/sup -/) conversion to antimuonium (..mu../sup -/e/sup +/) which corresponds to a coupling strength approximately equal to that of the weak interaction. Muonium was produced in vacuum from a thin silica powder layer. The conversion signal was radioactivity induced by negative muon capture in tungsten in an adjacent surface. No events were seen, establishing an upper limit on the effective four fermion weak coupling constant for conversion of 1.1 G/sub F/ (90% confidence level). The corresponding lower limit on the mass of a possibly doubly charged scalar boson in a left-right symmetric model is approximately the W boson mass.

• Research Organization: University of Victoria, Victoria, British Columbia V8W 2Y2
• OSTI ID: 6449255
• Report Number(s): CONF-8805142-
• Conference Information: Journal Name: AIP Conf. Proc.; (United States) Journal Volume: 176:1
• Country of Publication: United States
• Language: English

Related Subjects

645102* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AMPLITUDES
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
BASIC INTERACTIONS
COUPLING CONSTANTS
ELECTRON-MUON INTERACTIONS
ELECTRONS
ELEMENTARY PARTICLES
FERMIONS
GAMMA SPECTRA
INTERACTIONS
LEPTON-LEPTON INTERACTIONS
LEPTONS
LIMITING VALUES
MUONIUM
MUONS
MUONS MINUS
MUONS PLUS
PARTICLE INTERACTIONS
PHYSICAL PROPERTIES
POSITRONS
SPECTRA
TRANSITION AMPLITUDES
WEAK INTERACTIONS