A STUDY OF COHERENCE OF SOFT GLUONS IN HADRON JETS

被引：119

作者：

AKRAWY, MZ

机构：

[1] Queen Mary and Westfield College, University of London, London

[2] Department of Physics and Astronomy, Tel Aviv University, Tel Aviv

[3] Department of Physics, Schuster Laboratory, The University, Manchester

[4] Cavendish Laboratory, Cambridge

[5] Enrico Fermi Institute, Department of Physics, University of Chicago, Chicago

[6] Department of Physics, Carleton University, Colonel By Drive, Ottawa

[7] Rutherford Appleton Laboratory, Chilton, Didcot

[8] Laboratoire de Physique Nucléaire, Université de Montréal, Montreal

[9] Department of Physics and Astronomy, University of Maryland, College Park

[10] Fakultät für Physik, Albert Ludwigs Universität

[11] CERN, European Organisation for Particle Physics

[12] Physikalisches Institut, Universität Heidelberg

[13] Physikalisches Institut, Universität Bonn

[14] School of Physics and Space Research, University of Birmingham, Birmingham

[15] Dipartimento di Fisica dell'Università di Bologna, INFN

[16] University College London, London

[17] Birkbeck College, London

[18] Department of Physics, Technion-Israel Institute of Technology, Haifa

[19] DPhPE, CEN Saclay

[20] Department of Physics, University of California, Riverside

[21] Nuclear Physics Department, Weizmann Institute of Science, Rehovot

[22] International Center for Elementary Particle Physics, University of Tokyo, Tokyo

[23] Department of Physics, Kobe University, Kobe

[24] Brunel University, Uxbridge

来源：

PHYSICS LETTERS B | 1990年 / 247卷 / 04期

基金：

美国国家科学基金会; 加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1016/0370-2693(90)91911-T

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the inclusive momentum distribution of charged particles in multihadronic events produced in e+e- annihilations at ECM∼M(Z0). We find agreement with the analytical formulae for gluon production that include the phenomena of soft gluon interference. Using data from CM energies between 14 and 91 GeV, we study the dependence of the inclusive momentum distribution on the centre of momentum energy. We find that the analytical formulae describe the data over the entire energy range. Both the momentum distribution at a fixed energy and the change with energy are described by QCD shower Monte Carlo's which include either coherent gluon branchings or string fragmentation. Simple incoherent models with independent fragmentation fail to reproduce the energy dependence and momentum spectra. © 1990.

引用

页码：617 / 628

页数：12

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