Monte Carlo approach to multiparticle production in a quark-parton model. III. e/sup +/e/sup -/ annihilation and quark fragmentation functions

Journal Article · Fri Dec 01 00:00:00 EST 1978 · Phys. Rev., D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.18.4052· OSTI ID:6506795

Cerny, V; Lichard, P; Pisut, J; Bohacik, J; Nogova, A

A Monte Carlo quark-parton model of multiparticle production in e/sup +/e/sup -/ annihilation is presented. The model is based on the assumption that the polarization cloud in e/sup +/e/sup -/ annihilation behaves in a similar way as the parton system near y* approx. = 0 in hadronic collisions. The model is constructed in a close analogy with our previous work on multiple production in hadron collisions. With all the parameters fixed by data on hadron collisions the model gives reasonable results for e/sup +/e/sup -/ annihilation. Quark fragmentation functions are extracted from our results on particle production in e/sup +/e/sup -/ annihilation. Our results for fragmentation of quarks to mesons are similar to those obtained reecently by Field and Feynman in a different model. Scale breaking of quark fragmentation functions following from our model is discussed. Predictions for fragmentation of quarks to baryons are presented.

• Research Organization: Department of Theoretical Physics, Comenius University, Bratislava, Czechoslovakia
• OSTI ID: 6506795
• Journal Information: Phys. Rev., D; (United States), Vol. 18:11
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ELECTRON-POSITRON INTERACTIONS
ANNIHILATION
PARTON MODEL
MULTIPLE PRODUCTION
QUARK MODEL
QUARKS
FRAGMENTATION
BARYONS
MONTE CARLO METHOD
SCALE INVARIANCE
SPACE-TIME
BASIC INTERACTIONS
COMPOSITE MODELS
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
FERMIONS
HADRONS
INTERACTIONS
INVARIANCE PRINCIPLES
LEPTON-LEPTON INTERACTIONS
MATHEMATICAL MODELS
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
POSTULATED PARTICLES
645202* - High Energy Physics- Particle Interactions & Properties-Theoretical- Electromagnetic Interactions & Properties