Evidence for divergent baryon-number susceptibility in QCD matter

Details Evidence for divergent baryon-number susceptibility in QCD matter Evidence for divergent baryon-number susceptibility in QCD matter

2008-09-03

arxiv.org/abs/0809.0685v1

Phys.Rev.C81:011901,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 5 figures

Scientific paper

10.1103/PhysRevC.81.011901

The baryon-number density formed in relativistic nuclear collisions, versus the chemical potential of the freeze-out states, is systematically studied on the basis of existing measurements. A remarkable power-law behaviour of the baryon-number susceptibility is found at the SPS, consistent with the existence of a QCD critical point at $\mu_{B,c}\simeq 214$ MeV, $T_c\simeq 155$ MeV. The equation of state in different asymptotic regimes of the critical region is also examined and confronted with freeze-out states in these experiments.

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