Bochum 2018 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 46: Heavy Ion Collisions and QCD Phases VII

HK 46.2: Vortrag

Donnerstag, 1. März 2018, 14:30–14:45, HZO 60

Nuclear and Quark Matter with Fluctuations beyond LPA — •Johannes Weyrich and Lorenz von Smekal — JLU, Gießen

We study the QCD phase diagram and its chiral phase transition in the low energy hadronic sector including quark and mesonic degrees of freedom at finite temperature and chemical potential. In a similar way the vicinity of the liquid-gas transition of nuclear matter is explored introducing nucleons as degrees of freedom. In our approach mesonic and fermionic fluctuations beyond mean-field are taken into account by means of the functional renormalization group (FRG). The systematic derivative expansion of the effective average action is taken beyond local potential approximation (LPA) including scale dependent wave function renormalization factors for both quarks/baryons and mesons, and the influence of this improved truncation on the first order critical lines is discussed.