Universality of the transverse momentum distributions in the framework of percolation of strings View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

2005-03

AUTHORS

J. Dias de Deus, E. G. Ferreiro, C. Pajares, R. Ugoccioni

ABSTRACT

.In the framework of percolation of color sources, the transverse momentum distribution in heavy ion and p + p collisions at all centralities and energies are shown to follow a universal behavior. The width of the distribution depends on the fluctuations of the number of color sources per cluster. At low densities, there are only independent single color sources, no fluctuations occur and the distribution is described by a single exponential. At very high densities, only one cluster of many color sources appears and therefore there are not fluctuations either and the hardness of the distribution is suppressed. The Cronin effect in this framework is due to a maximum of the fluctuations which decreases as the density increases. We obtain a good agreement with experimental data including the low pT behavior and the spectra for different particles. We show that the transverse momentum and multiplicity distributions are related to each other in a defined way. This point is satisfied by the experimental data on p + p collisions at different energies. More... »

PAGES

229-241

References to SciGraph publications

  • 1988-07. Possible generalization of Boltzmann-Gibbs statistics in JOURNAL OF STATISTICAL PHYSICS
  • 2001-07. Chaotic sources and percolation of strings in heavy ion collisions in EUROPEAN PHYSICAL JOURNAL C
  • 1999-09. Diameter of the World-Wide Web in NATURE
  • 1989-03. Negative binomial multiplicity distributions for proton-nucleus collisions from a string model in ZEITSCHRIFT FÜR PHYSIK C PARTICLES AND FIELDS
  • 1975-03. The renormalization group: A probabilistic view in IL NUOVO CIMENTO B (1971-1996)
  • 2001-09. Monte Carlo model for nuclear collisions from SPS to LHC energies in EUROPEAN PHYSICAL JOURNAL C
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1140/epjc/s2005-02127-y

    DOI

    http://dx.doi.org/10.1140/epjc/s2005-02127-y

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