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:5991513

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

The inclusive production cross section of ..lambda..,Lambda-bar 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..,Lambda-bar multiplicity has been measured to be 0.197 +- 0.012(stat.) +- 0.017(syst.) ..lambda..-Lambda-bar pairs have been observed in jets for the first time, and the average number of ..lambda..-Lambda-bar pairs per event has been measured to be 0.042 +- 0.017 +- 0.014.

• Research Organization: Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720; University of California, Los Angeles, California 90024; University of California, Riverside, California 92521; Johns Hopkins University, Baltimore, Maryland 21218; University of Massachusetts, Amherst
• DOE Contract Number: AC03-76SF00098; AM03-76SF00034; AC02-76ER03330
• OSTI ID: 5991513
• 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

645102* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANNIHILATION
ANTIBARYONS
ANTIHYPERONS
ANTILAMBDA PARTICLES
ANTIMATTER
ANTIPARTICLES
BARYONS
BASIC INTERACTIONS
CROSS SECTIONS
DATA
ELECTROMAGNETIC INTERACTIONS
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
EXPERIMENTAL DATA
FERMIONS
GEV RANGE
GEV RANGE 10-100
HADRONS
HYPERONS
INCLUSIVE INTERACTIONS
INFORMATION
INTERACTIONS
LAMBDA PARTICLES
LEPTON-LEPTON INTERACTIONS
MULTIPLICITY
NUMERICAL DATA
PAIR PRODUCTION
PARTICLE INTERACTIONS
PEP STORAGE RINGS
STORAGE RINGS
STRANGE PARTICLES