Charged particle multiplicity distributions have been measured with the ALEPH detector in restricted rapidity intervals |Y| ≤0.5, 1.0, 1.5, 2.0 along the thrust axis and also without restriction on rapidity. The distribution for the full range can be parametrized by a log-normal distribution. For smaller windows one finds a more complicated structure, which is understood to arise from perturbative effects. The negative-binomial distribution fails to describe the data both with and without the restriction on rapidity. The JETSET model is found to describe all aspects of the data while the width predicted by HERWIG is in significant disagreement.

Buskulic, D., Casper, D., Debonis, I., Decamp, D., Ghez, P., Goy, C., et al. (1995). Measurements of the charged particle multiplicity distribution in restricted rapidity intervals. ZEITSCHRIFT FÜR PHYSIK. C, PARTICLES AND FIELDS, 69(1), 15-25 [10.1007/BF02907382].

Measurements of the charged particle multiplicity distribution in restricted rapidity intervals

CARPINELLI, Massimo;
1995

Abstract

Charged particle multiplicity distributions have been measured with the ALEPH detector in restricted rapidity intervals |Y| ≤0.5, 1.0, 1.5, 2.0 along the thrust axis and also without restriction on rapidity. The distribution for the full range can be parametrized by a log-normal distribution. For smaller windows one finds a more complicated structure, which is understood to arise from perturbative effects. The negative-binomial distribution fails to describe the data both with and without the restriction on rapidity. The JETSET model is found to describe all aspects of the data while the width predicted by HERWIG is in significant disagreement.
Articolo in rivista - Articolo scientifico
Physics
English
15
25
11
Buskulic, D., Casper, D., Debonis, I., Decamp, D., Ghez, P., Goy, C., et al. (1995). Measurements of the charged particle multiplicity distribution in restricted rapidity intervals. ZEITSCHRIFT FÜR PHYSIK. C, PARTICLES AND FIELDS, 69(1), 15-25 [10.1007/BF02907382].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/390308
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