Published November 1989 | Version v1
Journal article

Comparison of inclusive fractional momentum distributions of quark and gluon jets produced in e+e- annihilation

  • 1. Technische Hochschule Aachen (Germany, F.R.). Lehrstuhl fuer Experimentalphysik 1A und 1. Physikalisches Inst.
  • 2. Bonn Univ. (Germany, F.R.). Physikalisches Inst.
  • 3. Bristol Univ. (UK). H.H. Wills Physics Lab.
  • 4. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany, F.R.)
  • 5. Dortmund Univ. (Germany, F.R.). Inst. fuer Physik
  • 6. Hamburg Univ. (Germany, F.R.). 2. Inst. fuer Experimentalphysik
  • 7. Imperial Coll. of Science and Technology, London (UK). Dept. of Physics
  • 8. Universidad Autonoma de Madrid (Spain)
  • 9. Oxford Univ. (UK). Dept. of Nuclear Physics
  • 10. Rutherford Appleton Lab., Chilton (UK)
  • 11. Siegen Univ. (Gesamthochschule) (Germany, F.R.). Fachbereich 7 - Physik
  • 12. Weizmann Inst. of Science, Rehovoth (Israel)
  • 13. Wisconsin Univ., Madison (USA). Dept. of Physics

Description

Inclusive charged particle production in e+e- annihilation into hadrons is studied in terms of the particle fractional momentum xp. The xp distribution for gluon jets is extracted by comparing two data samples measured in the TASSO detector: Nearly symmetric three jet events at centre-of-mass energy W ≅ 35 GeV and two jet events at W ≅ 22 GeV, yielding quark and gluon jets of similar energies (≅ 11.5 GeV). No significant difference is observed between quark and gluon jets. Monte Carlo models based on parton showers describe the trend and energy variation of the data better than a model with second order matrix element in αs. (orig.)

Additional details

Publishing Information

Journal Title
Zeitschrift fuer Physik, C
Journal Volume
45
Journal Issue
1
Series
Z. Phys., C.
Journal Page Range
1-10
ISSN
0170-9739
CODEN
ZPCFD

Optional Information