Possibility of QCD critical point sweep during black hole formation

Details Possibility of QCD critical point sweep during black hole formation Possibility of QCD critical point sweep during black hole formation

2011-02-18

arxiv.org/abs/1102.3753v2

Physics

Nuclear Physics

Nuclear Theory

7 pages, 3 figures

Scientific paper

We discuss the possibility to probe the QCD critical point during the dynamical black hole formation from a gravitational collapse of a massive star, where the temperature and the baryon chemical potential become as high as T ~ 90 MeV and $\mu_B$ ~ 1300 MeV. Comparison with the phase boundary in chiral effective models suggests that quark matter is likely to be formed before the horizon is formed. Furthermore, the QCD critical point may be probed during the black hole formation. The critical point is found to move in the lower temperature direction in asymmetric nuclear matter, and in some of the chiral models it is found to be in the reachable region during the black hole formation processes.

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