Finite-size effects and the search for the critical endpoint of QCD

Details Finite-size effects and the search for the critical endpoint of QCD Finite-size effects and the search for the critical endpoint of QCD

2011-06-20

arxiv.org/abs/1106.3887v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 5 figures. Prepared for The Many Faces of QCD, Gent, Belgium, 1-5 Nov 2010

Scientific paper

Taking into account the finiteness of the system created in heavy ion collisions, we show sizable results for the modifications of the chiral phase diagram at volume scales typically encountered in current experiments and demonstrate the applicability of finite-size scaling as a tool in the experimental search for the critical endpoint. Using data from RHIC and SPS and assuming finite-size scaling, we find that RHIC data from 200 GeV down to 19.6 GeV is only consistent with a critical point at \mu \gtrsim 510 MeV. We also present predictions for the fluctuations at lower energies currently being investigated in the Beam Energy Scan program.

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