Campus Units

Physics and Astronomy

Document Type

Article

Publication Version

Published Version

Publication Date

3-2004

Journal or Book Title

Physical Review C

Volume

69

Issue

3

First Page

034910

DOI

10.1103/PhysRevC.69.034910

Abstract

The PHENIX experiment at the Relativistic Heavy Ion Collider has measured charged hadron yields at midrapidity over a wide range of transverse momenta (0.5 < p(T) < 10 GeV/c) in Au+Au collisions at roots(NN)=200 GeV. The data are compared to pi(0) measurements from the same experiment. For both charged hadrons and neutral pions, the yields per nucleon-nucleon collision are significantly suppressed in central compared to peripheral and nucleon-nucleon collisions. The suppression sets in gradually and increases with increasing centrality of the collisions. Above 4-5 GeV/c in p(T), a constant and almost identical suppression of charged hadrons and pi(0)'s is observed. The p(T) spectra are compared to published spectra from Au+Au at roots(NN)=130 in terms of x(T) scaling. Central and peripheral pi(0) as well as peripheral charged spectra exhibit the same x(T) scaling as observed in p+p data.

Comments

This article is published as Adler, Stephen Scott, S. Afanasiev, C. Aidala, N. N. Ajitanand, Y. Akiba, J. Alexander, R. Amirikas et al. "High-p T charged hadron suppression in Au+ Au collisions at s N N= 200 GeV." Physical Review C 69, no. 3 (2004): 034910. DOI: 10.1103/PhysRevC.69.034910. Posted with permission.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

Included in

Nuclear Commons

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