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Particle flow in a jet |
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| Authors: | J. Smith K. Tesima |
| Affiliation: | 1. Institute for Theoretical Physics, State University of New York at Stony Brook, 11794-3840, Stony Brook, NY, USA 2. CPT2, CNRS, Luminy, Case 907, F-13288, Marseille, Cedex 9, France 3. Department of Physics, University of Durham, South Road, DH1, 3LE, Durham, UK |
| Abstract: | The angular distribution of hadrons in a jet is evaluated in perturbative QCD. The predictions are restrictive in the sense they do no depend on the details of the non-perturbative process. The distribution depends on only one phenomenologically adjustable parameter, a cutoff massQ0 (in addition to the universal QCD mass-scale  ). The fit of the leading order prediction to the TASSO data is obtained withQ0 270 MeV.The low value ofQ0 supports the hypothesis of  local partonhadron duality . The particle flow in a gluon jet is also analysed. |
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