Campus Units

Physics and Astronomy

Document Type

Article

Publication Version

Published Version

Publication Date

6-2002

Journal or Book Title

Physical Review Letters

Volume

88

Issue

24

First Page

242301

DOI

10.1103/PhysRevLett.88.242301

Abstract

Identified pi(+/-), K+/-, p, and (p) over bar transverse momentum spectra at midrapidity in root s(NN) = 130 GeV Au + Au collisions were measured by the PHENIX experiment at RHIC as a function of collision centrality. Average transverse momenta increase with the number of participating nucleons in a similar way for all particle species. Within errors, all midrapidity particle yields per participant are found to be increasing with the number of participating nucleons. There is an indication that K+/-, p, and (p) over bar yields per participant increase faster than the pi(+/-) yields. In central collisions at high transverse momenta (p(T) greater than or similar to 2 GeV/c), (p) over bar and p yields are comparable to the pi(+/-) yields.

Comments

This article is published as Adcox, K., S. S. Adler, N. N. Ajitanand, Y. Akiba, J. Alexander, L. Aphecetche, Y. Arai et al. "Centrality Dependence of π+/−, K+/−, p, and p¯ Production from sNN= 130 GeV Au+ Au Collisions at RHIC." Physical review letters 88, no. 24 (2002): 242301. DOI:10.1103/PhysRevLett.88.242301. Posted with permission.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

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