An estimate for the location of QCD critical end point

Details An estimate for the location of QCD critical end point An estimate for the location of QCD critical end point

2007-08-27

arxiv.org/abs/0708.3512v6

Physics

Nuclear Physics

Nuclear Experiment

Revisions made to the format of figure 2

Scientific paper

It is proposed that a study of the ratio of shear viscosity to entropy density $\frac{\eta}{s}$ as a function of the baryon chemical potential $\mu_B$, and temperature T, provides a dynamic probe for the critical end point (CEP) in hot and dense QCD matter. An initial estimate from an elliptic flow excitation function gives $\mu^{\text{cep}}_B \sim 150-180$ MeV and $T_{\text{cep}} \sim 165 - 170$ MeV for the location of the the CEP. These values place the CEP in the range for "immediate" validation at RHIC.

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