lambda. production in e/sup +/e/sup -/ annihilations at 29 GeV
Conference
·
OSTI ID:5645603
This paper presents measurements of the inclusive production cross sections of ..lambda.. baryons in e/sup +/e/sup -/ annihilations at ..sqrt..s = 29 GeV. The data sample corresponds to an integrated luminosity of 256 pb/sup -1/ collected with the High Resolution Spectrometer at PEP. Comparisons are made to the predictions of the Lund model. The data are well described using a strange diquark suppression parameter, (us/ud)/(s/d), of 0.89 +- 0.10/sub -0.16//sup +0.56/, and the measured ..lambda../sub c/ ..-->.. ..lambda.. + X branching ratio of 23 +- 10%. No polarization is observed in the ..lambda.. decays. 17 refs., 5 figs.
- Research Organization:
- Purdue Univ., Lafayette, IN (USA); Argonne National Lab., IL (USA); Indiana Univ., Bloomington (USA); Michigan Univ., Ann Arbor (USA); Lawrence Berkeley Lab., CA (USA)
- DOE Contract Number:
- W-31109-ENG-38; AC02-76ER01112; AC03-76SF00098; AC02-76ER01428; AC02-84ER40125
- OSTI ID:
- 5645603
- Report Number(s):
- ANL-HEP-CP-86-30; IUHEE-82; UM-HE-86-08; CONF-8707145-1; ON: DE88002984
- Resource Relation:
- Conference: 33. international conference on high energy physics, Berkeley, CA, USA, 16 Jul 1987; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
Similar Records
lambda. production in e/sup +/e/sup -/ annihilations at 29 GeV: comparison with Lund-model predictions
Study of inclusive. Lambda. production in e sup + e minus annihilations at 29 GeV
Observation of tensor and scalar mesons produced in e/sup +/e/sup -/ annihilation at 29 GeV
Journal Article
·
Mon Mar 31 00:00:00 EST 1986
· Phys. Rev. Lett.; (United States)
·
OSTI ID:5645603
+7 more
Study of inclusive. Lambda. production in e sup + e minus annihilations at 29 GeV
Journal Article
·
Mon Jun 01 00:00:00 EDT 1992
· Physical Review, D (Particles Fields); (United States)
·
OSTI ID:5645603
+32 more
Observation of tensor and scalar mesons produced in e/sup +/e/sup -/ annihilation at 29 GeV
Conference
·
Wed Jan 01 00:00:00 EST 1986
·
OSTI ID:5645603
+7 more
Related Subjects
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ELECTRON-POSITRON INTERACTIONS
ANNIHILATION
LAMBDA PARTICLES
PARTICLE PRODUCTION
CROSS SECTIONS
EXPERIMENTAL DATA
GEV RANGE 10-100
PARTICLE RAPIDITY
POLARIZED PRODUCTS
BARYONS
BASIC INTERACTIONS
DATA
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
GEV RANGE
HADRONS
HYPERONS
INFORMATION
INTERACTIONS
LAMBDA BARYONS
LEPTON-LEPTON INTERACTIONS
NUMERICAL DATA
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
STRANGE PARTICLES
645102* - High Energy Physics- Particle Interactions & Properties-Experimental- Weak Interactions & Properties
ELECTRON-POSITRON INTERACTIONS
ANNIHILATION
LAMBDA PARTICLES
PARTICLE PRODUCTION
CROSS SECTIONS
EXPERIMENTAL DATA
GEV RANGE 10-100
PARTICLE RAPIDITY
POLARIZED PRODUCTS
BARYONS
BASIC INTERACTIONS
DATA
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
GEV RANGE
HADRONS
HYPERONS
INFORMATION
INTERACTIONS
LAMBDA BARYONS
LEPTON-LEPTON INTERACTIONS
NUMERICAL DATA
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
STRANGE PARTICLES
645102* - High Energy Physics- Particle Interactions & Properties-Experimental- Weak Interactions & Properties