Charged particle multiplicity distributions have been measured with the ALFPH detector in restricted rapidity intervals \Y\ less than or equal to 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.
|Autori interni:||MAGGI, Giorgio Pietro|
CREANZA, Donato Maria
|Titolo:||MEASUREMENTS OF THE CHARGED-PARTICLE MULTIPLICITY DISTRIBUTION IN RESTRICTED RAPIDITY INTERVALS|
|Rivista:||ZEITSCHRIFT FÜR PHYSIK. C, PARTICLES AND FIELDS|
|Data di pubblicazione:||1995|
|Digital Object Identifier (DOI):||10.1007/s002880050002|
|Appare nelle tipologie:||1.1 Articolo in rivista|