Azimuthal anisotropy of π 0 and η mesons in Au + Au collisions at s NN = 200 GeV

PHENIX Collaboration

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


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.

Original languageEnglish
Article number064910
JournalPhysical Review C - Nuclear Physics
Issue number6
StatePublished - 20 Dec 2013
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


Dive into the research topics of 'Azimuthal anisotropy of π 0 and η mesons in Au + Au collisions at s NN = 200 GeV'. Together they form a unique fingerprint.

Cite this