Inclusive electron production in multiprong events produced in e/sup +/e/sup -/ annihilation

Journal Article · Mon Jun 26 00:00:00 EDT 1978 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.40.1677· OSTI ID:6737471

Feller, J M; Litke, A M; Madaras, R J; Ronan, M T; Barbaro-Galtieri, A; Dorfan, J M; Ely, R; Feldman, G J; Fong, A; Gobbi, B; Hanson, G; Jaros, J A; Kwan, B P; Lecomte, P; Lueke, D; Martin, J F; Miller, D H; Parker, S I; Perl, M L; Peruzzi, I ; Piccolo, M; Pun, T P; Rapidis, P A; Ross, R R; Scharre, D L; Trippe, T G; Vuillemin, V; Yount, D E

We have measured inclusive electron production in multiprong events produced by e/sup +/e/sup -/ annihilation in the center-of-mass energy range 3.9--7.4 GeV. We find the electron momentum spectra are consistent with the electrons coming mainly from decays of charmed particles, with a smaller contribution from decays of the tau lepton. From our data we calculate the average branching ratio for charmed particles to decay into an electron plus additional particles to be (8.2 +- 1.9) %.

• Research Organization: Lawrence Berkeley Laboratory and Department of Physics, University of California, Berkeley, California 94720
• OSTI ID: 6737471
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 40:26; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

645101* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Electromagnetic Interactions & Properties
645102 -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANNIHILATION
BASIC INTERACTIONS
BRANCHING RATIO
CHARM PARTICLES
CROSS SECTIONS
DECAY
ELECTROMAGNETIC INTERACTIONS
ELECTRON-POSITRON INTERACTIONS
ELECTRONS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
GEV RANGE
GEV RANGE 01-10
HEAVY LEPTONS
INCLUSIVE INTERACTIONS
INTERACTIONS
LEPTON-LEPTON INTERACTIONS
LEPTONIC DECAY
LEPTONS
LINEAR MOMENTUM
PARTICLE DECAY
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
POSTULATED PARTICLES
SEMILEPTONIC DECAY
TAU PARTICLES
WEAK INTERACTIONS
WEAK PARTICLE DECAY