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Results from RHIC led to the discovery of the strongly coupled quark–gluon plasma (sQGP), a state of the QCD vacuum. In order to arrive at a coherent picture of this state, both the properties of the sQGP and the conditions under which the sQGP is measured have to be established. In this paper, we p...

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Bibliographic Details
Published in:Journal of physics. G, Nuclear and particle physics Nuclear and particle physics, 2011-11, Vol.38 (12)
Main Author: Bathe, S.
Format: Article
Language:English
Subjects:
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
riken bnl research center
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Summary:Results from RHIC led to the discovery of the strongly coupled quark–gluon plasma (sQGP), a state of the QCD vacuum. In order to arrive at a coherent picture of this state, both the properties of the sQGP and the conditions under which the sQGP is measured have to be established. In this paper, we present recent experimental results of the PHENIX Collaboration, further constraining the conditions and the properties of the sQGP at RHIC: measurement of direct photon elliptic flow provides strong constraints for hydrodynamic models employed to derive the initial temperature; measurement of v2 and v3 disentangles effects from the initial state and η/s; flow and RAA measurements at lower $\sqrt{s}$ extend the results to a regime at lower temperature and higher baryon density.
ISSN:0954-3899
1361-6471
DOI:10.1088/0954-3899/38/12/124001