Hadron production in e/sup +/e/sup -/ annihilation at. sqrt. s = 29 GeV

Journal Article · Fri May 01 00:00:00 EDT 1987 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.35.2639· OSTI ID:5859011

Derrick, M; Fernandez, E; Gan, K K; Fries, R; Hyman, L; Kooijman, P; Loos, J S; Musgrave, B; Price, L E; Schlereth, J

Data from the High Resolution Spectrometer at the SLAC storage ring PEP have been used to study the inclusive production of baryons and mesons. Time-of-flight measurements are used to identify the charged hadrons. Neutral hadrons are identified from effective-mass peaks associated with their decay into two charged particles. Cross sections and other inclusive production characteristics are presented for ..pi../sup +- /, K/sup +- /, and K/sup 0/ (K-bar/sup 0/) mesons, and for the baryons (antibaryons)= p (p-bar) and ..lambda.. (Lambda-bar). The ratio of the inclusive cross section to the point cross section for the K/sup 0/ and K-bar/sup 0/ mesons is R(K/sup 0/,K-bar/sup 0/) = 6.15 +- 0.13 +- 0.25, and for ..lambda.. and Lambda-bar, R(..lambda..,Lambda-bar) = 0.846 +- 0.036 +- 0.085. The neutral-hadron differential cross sections are compared with the predictions of the Lund string model.

• Research Organization: Argonne National Laboratory, Argonne, Illinois 60439
• OSTI ID: 5859011
• Journal Information: Phys. Rev. D; (United States), Vol. 35:9
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ELECTRON-POSITRON INTERACTIONS
ANNIHILATION
HADRONS
PARTICLE PRODUCTION
ANTIPROTONS
BHABHA SCATTERING
DIFFERENTIAL CROSS SECTIONS
FRAGMENTATION
GEV RANGE 10-100
INCLUSIVE INTERACTIONS
KAONS
LAMBDA PARTICLES
PEP STORAGE RINGS
PIONS MINUS
PIONS PLUS
PROTONS
QUARKS
STRING MODELS
TIME-OF-FLIGHT METHOD
ANTIBARYONS
ANTIMATTER
ANTINUCLEI
ANTINUCLEONS
ANTIPARTICLES
BARYONS
BASIC INTERACTIONS
BOSONS
COMPOSITE MODELS
CROSS SECTIONS
ELASTIC SCATTERING
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
EXTENDED PARTICLE MODEL
FERMIONS
GEV RANGE
HYPERONS
INTERACTIONS
LAMBDA BARYONS
LEPTON-LEPTON INTERACTIONS
MATHEMATICAL MODELS
MESONS
NUCLEI
NUCLEONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PIONS
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUARK MODEL
SCATTERING
STORAGE RINGS
STRANGE MESONS
STRANGE PARTICLES
645101* - High Energy Physics- Particle Interactions & Properties-Experimental- Electromagnetic Interactions & Properties