Study of vector-meson production in /ital e//sup +/e/sup /minus// annihilation at /radical//ital s/ =29 GeV

Journal Article · Tue Aug 01 00:00:00 EDT 1989 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.40.706· OSTI ID:5891063

Abachi, S; Derrick, M; Kooijman, P; Musgrave, B; Price, L E; Repond, J; Sugano, K; Waschbusch, P; Blockus, D; Brabson, B; others, and

This paper reports cross-section measurements for the /rho//sup 0/ and /ital K//sup */(890) vector mesons produced in /ital e//sup +/e/sup /minus// annihilation at /radical//ital s/ =29 GeV. The data, which were taken with the High Resolution Spectrometer operating at the SLAC colliding-beam facility PEP,correspond to an integrated luminosity of 291 pb/sup /minus/1/. The measured multiplicities for fractional momentum /ital x//gt/0.05 are /ital N//sub /rho//sup 0//=0.79/plus minus/0.04 and /ital N//sub /ital K//sup *0/(890)/=0.53/plus minus/0.04. The measured fragmentation functions agree well with the predictions of the Lund model and when extrapolated to threshold, the corresponding total multiplicities are /ital N//sub /rho//sup 0//=0.90/plus minus/0.05 and /ital N//sub /ital K//sup *0/(890)/=0.59/plus minus/0.05.

• Research Organization: Argonne National Laboratory, Argonne, Illinois 60439 (US); Indiana University, Bloomington, Indiana 47405; University of Michigan, Ann Arbor, Michigan 48109
• DOE Contract Number: W-31-109-ENG-38
• OSTI ID: 5891063
• Journal Information: Phys. Rev. D; (United States), Vol. 40:3
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ELECTRON-POSITRON INTERACTIONS
ANNIHILATION
VECTOR MESONS
PARTICLE PRODUCTION
FRAGMENTATION
GEV RANGE 10-100
K -892 MESONS
MULTIPLICITY
PEP STORAGE RINGS
QUANTUM CHROMODYNAMICS
TIME-OF-FLIGHT METHOD
BASIC INTERACTIONS
BOSONS
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
FIELD THEORIES
GEV RANGE
HADRONS
INTERACTIONS
LEPTON-LEPTON INTERACTIONS
MESONS
PARTICLE INTERACTIONS
QUANTUM FIELD THEORY
STORAGE RINGS
STRANGE MESONS
STRANGE PARTICLES
645102* - High Energy Physics- Particle Interactions & Properties-Experimental- Weak Interactions & Properties