Third moments of conserved charges as probes of QCD phase structure

Abstract

The third moments of conserved charges, the baryon and electric charge numbers, and energy, as well as their mixed moments, carry more information on the state around the QCD phase boundary than previously proposed fluctuation observables and higher order moments. In particular, their signs give plenty of information on the location of the state created in relativistic heavy ion collisions in the temperature and baryon chemical potential plane. We demonstrate this with an effective model.

4 pages, 2 figures. Minor changes. To be published in Physical Review Letters

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• Quark Number Fluctuations in a Chiral Model at Finite Baryon Chemical Potential
• Study of the Fluctuations of Net-charge and Net-protons Using Higher Order Moments
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