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arXiv · 1106.6112

A Study of the QCD Critical Point Using Particle Ratio Fluctuations

Terence J Tarnowsky
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Abstract

Dynamical fluctuations in global conserved quantities such as baryon number, strangeness, or charge may be observed near a QCD critical point. Results from new measurements of dynamical $K/π$ and $p/π$ ratio fluctuations are presented. The commencing of a QCD critical point search at RHIC has extended the reach of possible measurements of dynamical $K/π$ and $p/π$ ratio fluctuations from Au+Au collisions to lower energies. The STAR experiment has performed a comprehensive study of the energy dependence of these dynamical fluctuations in Au+Au collisions at the energies $\sqrt{s_{NN}}$ = 7.7, 11.5, and 39 GeV. New results are compared to previous measurements and to theoretical predictions from several models.

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Terence J Tarnowsky. 2011-06-30. A Study of the QCD Critical Point Using Particle Ratio Fluctuations. https://doi.org/10.1088/1742-6596%2F316%2F1%2F012022

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