Dyson-Schwinger approach to baryon number fluctuations

Abstract

We summarize our results on baryon number fluctuations at nonzero temperature and chemical potential. They are obtained from solutions of a coupled set of Dyson-Schwinger equations for the quark and gluon propagators of QCD in Landau gauge with $N_f=2+1$ quark flavors. In comparison with preliminary STAR data, our results are compatible with a critical endpoint at large chemical potential and a freeze-out line that bends below it.

Comments: 5 pages, 4 figures; contribution to the proceedings of the FAIR next generation scientists workshop (FAIRNESS), 6th edition, 20-24 May 2019, Arenzano, Italy