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

Journal Article · Fri May 01 04:00:00 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), Journal Name: Phys. Rev. D; (United States) Vol. 35:9; ISSN PRVDA
• 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
ANNIHILATION
ANTIBARYONS
ANTIMATTER
ANTINUCLEI
ANTINUCLEONS
ANTIPARTICLES
ANTIPROTONS
BARYONS
BASIC INTERACTIONS
BHABHA SCATTERING
BOSONS
COMPOSITE MODELS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
ELASTIC SCATTERING
ELECTROMAGNETIC INTERACTIONS
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
EXTENDED PARTICLE MODEL
FERMIONS
FRAGMENTATION
GEV RANGE
GEV RANGE 10-100
HADRONS
HYPERONS
INCLUSIVE INTERACTIONS
INTERACTIONS
KAONS
LAMBDA BARYONS
LAMBDA PARTICLES
LEPTON-LEPTON INTERACTIONS
MATHEMATICAL MODELS
MESONS
NUCLEI
NUCLEONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
PEP STORAGE RINGS
PIONS
PIONS MINUS
PIONS PLUS
POSTULATED PARTICLES
PROTONS
PSEUDOSCALAR MESONS
QUARK MODEL
QUARKS
SCATTERING
STORAGE RINGS
STRANGE MESONS
STRANGE PARTICLES
STRING MODELS
TIME-OF-FLIGHT METHOD