Anomalous electron production using the lead glass wall at SPEAR. [Branching ratio]

Conference · Sun Jan 01 04:00:00 EST 1978 · AIP (Am. Inst. Phys.) Conf. Proc.; (United States)

OSTI ID:6578111

Lecomte, P

Recent results from SPEAR on anomalous electron production in electron-positron annihilation are presented. The data were collected with the Mark I Magnetic Detector, supplemented by an array of lead glass counters. Two charged prong events as well as multi-prong events, both with an electron detected in the lead glass wall, are discussed. The two-prong data are compared with predictions resulting from the heavy lepton hypothesis and the branching ratios Br(tau/sup -/ ..-->.. e/sup -/ anti nu/sub e/nu/sub tau/) as well as Br(tau ..-->.. charged hadron + neutrals) are evaluated. The multiprongs data are used to obtain the branching ratio for the decay of the D meson into electron. 11 references.

• Research Organization: Lawrence Berkeley Lab., CA
• OSTI ID: 6578111
• Report Number(s): CONF-771089-
• Conference Information: Journal Name: AIP (Am. Inst. Phys.) Conf. Proc.; (United States) Journal Volume: 43
• Country of Publication: United States
• Language: English

Related Subjects

645101* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Electromagnetic Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANNIHILATION
BASIC INTERACTIONS
BOSONS
BRANCHING RATIO
CHARM PARTICLES
CHARMED MESON RESONANCES
D RESONANCES
DECAY
ELECTROMAGNETIC INTERACTIONS
ELECTRON-POSITRON INTERACTIONS
ELECTRONS
ELECTROPRODUCTION
ELEMENTARY PARTICLES
EMISSION
FERMIONS
HADRONS
HEAVY LEPTONS
INTERACTIONS
K RESONANCES
KAONS
LEPTON-LEPTON INTERACTIONS
LEPTONIC DECAY
LEPTONS
MASSLESS PARTICLES
MESON RESONANCES
MESONS
NEUTRINOS
PARTICLE DECAY
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
RESONANCE PARTICLES
SEMILEPTONIC DECAY
STRANGE PARTICLES
TAU NEUTRINOS
TAU PARTICLES
WEAK INTERACTIONS
WEAK PARTICLE DECAY