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 National Laboratory (LBNL), Berkeley, CA (United States)
• DOE Contract Number: AC03-76SF00098; AA03-76SF00034; AC02-76ER03330
• OSTI ID: 6709621
• Journal Information: Phys. Rev. Lett.; (United States), Vol. 54:4
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTILAMBDA PARTICLES
PAIR PRODUCTION
PARTICLE PRODUCTION
ELECTRON-POSITRON INTERACTIONS
LAMBDA PARTICLES
ANGULAR DISTRIBUTION
CROSS SECTIONS
EXPERIMENTAL DATA
GEV RANGE 10-100
MULTIPLICITY
PARTICLE RAPIDITY
PEP STORAGE RINGS
ANTIBARYONS
ANTIHYPERONS
ANTIMATTER
ANTIPARTICLES
BARYONS
DATA
DISTRIBUTION
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
GEV RANGE
HADRONS
HYPERONS
INFORMATION
INTERACTIONS
LAMBDA BARYONS
LEPTON-LEPTON INTERACTIONS
NUMERICAL DATA
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
STORAGE RINGS
STRANGE PARTICLES
645101* - High Energy Physics- Particle Interactions & Properties-Experimental- Electromagnetic Interactions & Properties