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Comparison of charged particle multiplicities in quark and gluon jets produced in e+e- annihilation at 29 GeV

  • M. Derrick
  • , K. K. Gan
  • , P. Kooijman
  • , J. S. Loos
  • , B. Musgrave
  • , L. E. Price
  • , J. Schlereth
  • , K. Sugano
  • , J. M. Weiss
  • , D. E. Wood
  • , D. Blockus
  • , B. Brabson
  • , S. W. Gray
  • , C. Jung
  • , H. Neal
  • , H. Ogren
  • , D. R. Rust
  • , M. Valdata-Nappi
  • , C. Akerlof
  • , G. Bonvicini
  • J. Chapman, D. Errede, N. Harnew, P. Kesten, D. I. Meyer, D. Nitz, A. A. Seidl, R. Thun, T. Trinko, M. Willutzky, S. Abachi, P. Baringer, I. Beltrami, B. G. Bylsma, R. Debonte, D. Koltick, F. J. Loeffler, E. H. Low, R. L. McIlwain, D. H. Miller, C. R. Ng, L. K. Rangan, E. I. Shibata, B. Cork
  • Argonne National Laboratory
  • Indiana University Bloomington
  • University of Michigan, Ann Arbor
  • Purdue University
  • Lawrence Berkeley National Laboratory

Research output: Contribution to journalArticlepeer-review

59 Scopus citations

Abstract

The charged particle multiplicities of the quark and gluon jets in the three-fold symmetric e+e- → qqg events at √s = 29 GeV have been studied using the high resolution spectrometer at PEP. A value of 〈n〉g = 6.7-2.1+1.1±1.0 for gluon jet s with an energy of 9.7-2.0+1.5 GeV is measured. The ratio, 〈n〉g/〈n〉q, is 1.29-0.41+0.21±0.20, which i s significantly lower than the value of 9 4 naively expected from the ration of the gluon-to-quark color charges.

Original languageEnglish
Pages (from-to)449-453
Number of pages5
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume165
Issue number4-6
DOIs
StatePublished - Dec 26 1985

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