Campus Units

Physics and Astronomy

Document Type

Article

Publication Version

Published Version

Publication Date

6-2007

Journal or Book Title

Physical Review Letters

Volume

98

Issue

23

First Page

232302

DOI

10.1103/PhysRevLett.98.232302

Abstract

We present azimuthal angle correlations of intermediate transverse momentum (1-4 GeV/c) hadrons from dijets in Cu+Cu and Au+Au collisions at root s(NN)=62.4 and 200 GeV. The away-side dijet induced azimuthal correlation is broadened, non-Gaussian, and peaked away from Delta phi=pi in central and semicentral collisions in all the systems. The broadening and peak location are found to depend upon the number of participants in the collision, but not on the collision energy or beam nuclei. These results are consistent with sound or shock wave models, but pose challenges to Cherenkov gluon radiation models.

Comments

This article is published as Adare, A., S. S. Adler, S. Afanasiev, C. Aidala, N. N. Ajitanand, Y. Akiba, H. Al-Bataineh et al. "System Size and Energy Dependence of Jet-Induced Hadron Pair Correlation Shapes in Cu+ Cu and Au+ Au Collisions at s N N= 200 and 62.4 GeV." Physical review letters 98, no. 23 (2007): 232302. DOI: 10.1103/PhysRevLett.98.232302. Posted with permission.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

Included in

Nuclear Commons

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