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Title: Universal scaling of p{sub T} distribution of particles in relativistic nuclear collisions

Abstract

With the experimental data from the STAR, PHENIX, and BRAHMS programs on the centrality and rapidity dependence of the p{sub T} spectrum in Au+Au and d+Au collisions, we show that a scaling distribution exists that is independent of the colliding system, centrality, and rapidity. The parameter for the average transverse momentum <p{sub T}> increases from peripheral to central d+Au collisions. This increase accounts for the enhancement of particle production in those collisions. A nonextensive entropy is used to derive the scaling function.

Authors:
;  [1]
  1. Institute of Particle Physics, Hua-Zhong Normal University, Wuhan 430079 (China)
Publication Date:
OSTI Identifier:
20995223
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. C, Nuclear Physics; Journal Volume: 75; Journal Issue: 4; Other Information: DOI: 10.1103/PhysRevC.75.044904; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; COLLISIONS; DISTRIBUTION; ENTROPY; GOLD; PARTICLE PRODUCTION; PARTICLE RAPIDITY; RELATIVISTIC RANGE; SCALING; TRANSVERSE MOMENTUM

Citation Formats

Zhu, L. L., and Yang, C. B. Universal scaling of p{sub T} distribution of particles in relativistic nuclear collisions. United States: N. p., 2007. Web. doi:10.1103/PHYSREVC.75.044904.
Zhu, L. L., & Yang, C. B. Universal scaling of p{sub T} distribution of particles in relativistic nuclear collisions. United States. doi:10.1103/PHYSREVC.75.044904.
Zhu, L. L., and Yang, C. B. Sun . "Universal scaling of p{sub T} distribution of particles in relativistic nuclear collisions". United States. doi:10.1103/PHYSREVC.75.044904.
@article{osti_20995223,
title = {Universal scaling of p{sub T} distribution of particles in relativistic nuclear collisions},
author = {Zhu, L. L. and Yang, C. B.},
abstractNote = {With the experimental data from the STAR, PHENIX, and BRAHMS programs on the centrality and rapidity dependence of the p{sub T} spectrum in Au+Au and d+Au collisions, we show that a scaling distribution exists that is independent of the colliding system, centrality, and rapidity. The parameter for the average transverse momentum <p{sub T}> increases from peripheral to central d+Au collisions. This increase accounts for the enhancement of particle production in those collisions. A nonextensive entropy is used to derive the scaling function.},
doi = {10.1103/PHYSREVC.75.044904},
journal = {Physical Review. C, Nuclear Physics},
number = 4,
volume = 75,
place = {United States},
year = {Sun Apr 15 00:00:00 EDT 2007},
month = {Sun Apr 15 00:00:00 EDT 2007}
}