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

064910-1

Last Page

064910-10

DOI

10.1103/PhysRevC.88.064910

Abstract

The azimuthal anisotropy coefficients v2 and v4 of π0 and η mesons are measured in Au + Au collisions at √sNN=200 GeV as a function of transverse momentum pT (1–14 GeV/c) and centrality. The extracted v2 coefficients are found to be consistent between the two meson species over the measured pT range. The ratio of v4/v22 for π0 mesons is found to be independent of pT for 1–9 GeV/c, implying a lack of sensitivity of the ratio to the change of underlying physics with pT. Furthermore, the ratio of v4/v22 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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