Elimination of charmed mesons as source of anomalous lepton events in e$sup +$$e$$sup -$ annihilations

Journal Article · Thu Apr 01 04:00:00 EST 1976 · Phys. Rev. Lett., v. 36, no. 14, pp. 766-768

OSTI ID:4018683

Snow, G A

An analysis of the Maryland--Pavia--Princeton experiment on inclusive muon production in e$sup -$$e$$sup +$ annihilation yields an upper limit for the ratio of charged-multiplicity events from the particle U, charge conjugate to the particle anti U that produced the muon, of [U $Yields$ n/sub ch/ > or = 3]/[U $Yields$ n/sub ch/ = 1] < 0.33. If U were a charmed meson, this ratio would be >2, a prediction incompatible with the data. The predicted ratio for U a heavy lepton is approx. 0.18, in good agreement with experiment. (AIP)

• Research Organization: University of Maryland, College Park, Maryland 20742
• NSA Number: NSA-33-031282
• OSTI ID: 4018683
• Journal Information: Phys. Rev. Lett., v. 36, no. 14, pp. 766-768, Journal Name: Phys. Rev. Lett., v. 36, no. 14, pp. 766-768; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

*CHARM PARTICLES-- PARTICLE PRODUCTION
*ELECTRON-POSITRON INTERACTIONS-- ANNIHILATION
*HEAVY LEPTONS-- PARTICLE PRODUCTION
641002*
BRANCHING RATIO
CHARGED PARTICLES
CROSS SECTIONS
INCLUSIVE INTERACTIONS
LEPTONIC DECAY
MULTIPLICITY
MUONS
N64120* --Physics (High Energy)--Particle Interactions &amp; Properties (Experimental)--Weak