Inclusive production of vector mesons in e sup + e sup minus annihilation at radical s = 29 GeV

Thesis/Dissertation · Fri Jan 01 04:00:00 EST 1988

OSTI ID:6955464

Edberg, T K

This thesis describes the measurement of multiplicities and differential cross-sections of the {rho}{sup 0}, K{sup *0}, and {upsilon} in e{sup +}e{sup {minus}} annihilation at {radical}s = 29 GeV, using data collected by the TPC/2{gamma} Detector Facility at PEP. The number of vector mesons per event is determined to be N({rho}{sup 0}) = 0.77 {plus minus} 0.08 {plus minus} 0.15, N(K{sup *0} + {bar K}{sup 0}) = 0.58 {plus minus} 0.05 {plus minus} 0.11, and N({upsilon}) = 0.076 {plus minus} 0.010 {plus minus} 0.012. These multiplicities are used to find that the ratio of strange quarks to up quarks produced in the hadronization process is 0.30 {plus minus} 0.07, and that the ratio of light vector mesons to all light mesons produced in the hadronization process is 0.45 {plus minus} 0.08. All results agree with previous measurements. Measurements are compared with predictions of the Lund and Webber hadronization models; neither model is particularly favored nor disfavored.

• Research Organization: California Univ., Berkeley, CA (USA)
• OSTI ID: 6955464
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
645100 -- High Energy Physics-- Particle Interactions & Properties-Experimental
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
74 ATOMIC AND MOLECULAR PHYSICS
BOSONS
CALCULATION METHODS
COLLISIONS
CROSS SECTIONS
DATA
DATA ANALYSIS
DIFFERENTIAL CROSS SECTIONS
ELECTRON COLLISIONS
ELECTRON-POSITRON COLLISIONS
ELEMENTARY PARTICLES
EXPERIMENTAL DATA
FERMIONS
HADRONS
INFORMATION
MEASURING INSTRUMENTS
MEASURING METHODS
MESONS
NUMERICAL DATA
PEP STORAGE RINGS
POSITRON COLLISIONS
POSTULATED PARTICLES
PRODUCTION
QUARKS
STORAGE RINGS
VECTOR MESONS