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HK: Fachverband Physik der Hadronen und Kerne

HK 46: Heavy-Ion Collisions and QCD Phases X

HK 46.2: Vortrag

Mittwoch, 30. März 2022, 16:30–16:45, HK-H2

Critical endpoint of QCD in a finite volume — •Julian Bernhardt^1,2, Christian S. Fischer^1,2, Philipp Isserstedt^1,2, and Bernd-Jochen Schaefer^1,2 — ¹Institut 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.