Fragmentation of heavy quarks produced in e/sup +/e/sup -/ annihilation

Journal Article · Mon Jun 27 04:00:00 EDT 1983 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.50.2054· OSTI ID:5829134

Fernandez, E; Ford, W T; Read, Jr, A L

Identification of muons in hadronic events from e/sup +/e/sup -/ annihilation observed in the MAC detector at the storage ring PEP provides flavor tagging of heavy primary quarks. A sample enriched in events from bb-bar production is obtained and the b-quark fragmentation function is inferred from the momentum spectrum of the muons. The b quark is found to fragment predominantly with high values of z, with = 0.8 +- 0.1, and to have an overall semimuonic branching fraction of (15.5/sub -2.9//sup +5.4/)%.

• Research Organization: Department of Physics, University of Colorado, Boulder, Colorado 80309
• DOE Contract Number: AC02-81ER40025; AC03-76SF00515; AC02-76ER00881
• OSTI ID: 5829134
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 50:26; ISSN PRLTA
• 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
ANNIHILATION
BASIC INTERACTIONS
BRANCHING RATIO
COMPOSITE MODELS
ELECTROMAGNETIC INTERACTIONS
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
FERMIONS
FLAVOR MODEL
FRAGMENTATION
INTERACTIONS
LEPTON-LEPTON INTERACTIONS
LEPTONS
MATHEMATICAL MODELS
MUONS
PARTICLE IDENTIFICATION
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
PEP STORAGE RINGS
POSTULATED PARTICLES
QUARK MODEL
QUARKS
STORAGE RINGS