Campus Units

Physics and Astronomy

Document Type

Article

Publication Version

Published Version

Publication Date

12-20-2013

Journal or Book Title

Physical Review C

Volume

88

First Page

064910

Last Page

064910

DOI

10.1103/PhysRevC.88.064910

Abstract

The azimuthal anisotropy coefficients v2 and v4 of p 0 and. mesons are measured in Au + Au collisions at root s(NN) = 200 GeV as a function of transverse momentum p(T) (1-14 GeV/c) and centrality. The extracted v(2) coefficients are found to be consistent between the two meson species over the measured p(T) range. The ratio of v(4)/v(2)(2) for pi(0) mesons is found to be independent of p(T) for 1- 9 GeV/c, implying a lack of sensitivity of the ratio to the change of underlying physics with p(T). Furthermore, the ratio of v(4)/v(2)(2) is systematically larger in central collisions, which may reflect the combined effects of fluctuations in the initial collision geometry and finite viscosity in the evolving medium.

Comments

This is an article from Physical Review C 88, (2013): 064910, doi: 10.1103/PhysRevC.88.064910. Posted with permission.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

Included in

Nuclear Commons

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