lambda. production in e/sup +/e/sup -/ annihilation at 29 GeV

Journal Article · Mon Jan 28 00:00:00 EST 1985 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.54.274· OSTI ID:6709621

Aihara, H; Alston-Garnjost, M A; Bakken, J A; Barbaro-Galtieri, A; Barnes, A V; Barnett, B A; Blumenfeld, B J; Bross, A D; Buchanan, C D; Chamberlain, O; Chien, C Y

The inclusive production cross section of ..lambda.., anti ..lambda.. in e/sup +/e/sup -/ annihilation at a c.m. energy of 29 GeV has been measured with the time-projection-chamber detector at PEP. The average lambda, anti lambda multiplicity has been measured to be 0.197 +/- 0.012 (stat.) +/- 0.017 (syst.). ..lambda..-anti..lambda.. pairs have been observed in jets for the first time, and the average number of ..lambda..-anti..lambda.. pairs per event has been measured to be 0.042 +/- 0.017 +/- 0.014. 8 references, 3 figures.

• Research Organization: Lawrence Berkeley Lab., CA
• DOE Contract Number: AC03-76SF00098; AA03-76SF00034; AC02-76ER03330
• OSTI ID: 6709621
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 54:4; ISSN PRLTA
• 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
ANGULAR DISTRIBUTION
ANTIBARYONS
ANTIHYPERONS
ANTILAMBDA PARTICLES
ANTIMATTER
ANTIPARTICLES
BARYONS
CROSS SECTIONS
DATA
DISTRIBUTION
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
EXPERIMENTAL DATA
FERMIONS
GEV RANGE
GEV RANGE 10-100
HADRONS
HYPERONS
INFORMATION
INTERACTIONS
LAMBDA BARYONS
LAMBDA PARTICLES
LEPTON-LEPTON INTERACTIONS
MULTIPLICITY
NUMERICAL DATA
PAIR PRODUCTION
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PARTICLE PROPERTIES
PARTICLE RAPIDITY
PEP STORAGE RINGS
STORAGE RINGS
STRANGE PARTICLES