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Mainz 2022 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 46: Heavy-Ion Collisions and QCD Phases X

HK 46.2: Talk

Wednesday, March 30, 2022, 16:30–16:45, HK-H2

Critical endpoint of QCD in a finite volume — •Julian Bernhardt1,2, Christian S. Fischer1,2, Philipp Isserstedt1,2, and Bernd-Jochen Schaefer1,21Institut für Theoretische Physik, Justus-Liebig-Universität Gießen, 35392 Gießen, Germany — 2Helmholtz Forschungsakademie Hessen für FAIR (HFHF), GSI Helmholtzzentrum für Schwerionenforschung, Campus Gießen, 35392 Gießen, Germany

We summarize recent results on the volume dependence of the location of the critical endpoint in the QCD phase diagram. To this end, we employ a sophisticated combination of Lattice Yang-Mills theory and a (truncated) version of Dyson-Schwinger equations in Landau gauge for 2+1 quark flavors. We study this system at small and intermediate volumes and determine the dependence of the location of the critical endpoint on the boundary conditions and the volume of a three-dimensional cube with edge length L. Additionally, we report on the chiral limit of the light quarks for different strange quark masses at vanishing chemical potential.

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