Measurement Of Charged Particle Multiplicities In Gluon And Quark Jets In Proton Anti Proton Collisions At S 1 2
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Proceedings of the XXXI International Symposium on Multiparticle Dynamics
This volume contains more than 80 papers by theorists and experimentalists in the field of multiparticle production. A large variety of domains in high energy physics are covered. For each of these domains, an overview is given before the newest results are presented.
Measurement of Charged Particle Multiplicities in Gluon and Quark Jets in Proton Anti-proton Collisions at S**1/2
The authors report the first model independent measurement of charged particle multiplicities in quark and gluon jets, N{sub q} and N{sub g}, produced at the Tevatron in p{bar p} collisions with center-of-mass energy 1.8 TeV and recorded by the Collider Detector at Fermilab. The measurements are made for jets with average energies 41 and 53 GeV by counting charged particle tracks in cones with opening angle of [theta]{sub c} = 0.28, 0.36, and 0.47 rad around the jet axis. The corresponding jet hardness Q = E{sub jet}[theta]{sub c} varies in the range from 12 GeV to 25 GeV. At Q = 19 GeV, the ratio of multiplicities r = N{sub g}/N{sub q} is found to be 1.64 ± 0.17, where statistical and systematic uncertainties are added in quadrature. The results are in agreement with re-summed perturbative QCD calculations.
Hadronic Multiparticle Production
Contents: Experiment:Hadron Production in High Energy Collisions of Leptons with Nucleons and Nuclei (N Schmitz)Particle Production in Continuum e+e- Annihilation at High Energy (M Derrick & Abachi)Selected Results on Multihadron Production at ISR Energies (R Campanini)Hadron-Nuclear Interactions (W D Walker & P C Bhat)Diffractive Multiparticle Production (K Goulianos)Bose-Einstein Correlations: From Statistics to Dynamics (W A Zajc)Multihadron Events in Cosmic Rays (T Stanev & G B Yodh)Theory:The Pomeron in QCD (A R White)Problems in Hadronization Physics (B Andersson)The Concept of Inelasticity in High Energy Reactions (G Wilk)Dual Parton Model (A Capella et al.)Application of the Methods of Quantum Optics to Multihadron Production (G N Fowler & R M Weiner)A Unified Physical Picture of Multiparticle Emission in pp and e+e- Collisions (T T Chou & C N Yang)Branching Processes in Multiparticle Production (R C Hwa)Multiparticle Production at High Energy and Superclustering Processes (C C Shih)“Fireball” Models and Statistical Methods in Multiparticle Production Processes (T C Meng)Toward a Statistical Description of Deconfinement Transition (P Carruthers & I Sarcevic) Readership: High energy physicists. Keywords:Hadron Production;High Energy Collisions;Bose-Einstein Correlations;Pomeron;Hadronization Physics