Bochum 2018 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 56: Heavy Ion Collisions and QCD Phases IX
HK 56.3: Vortrag
Freitag, 2. März 2018, 14:45–15:00, HZO 60
Electric conductivity of a hadron gas — •Jan Hammelmann1,2, Juan Torres-Rincon4, Jean-Bernard Rose1,2, Moritz Greif2, and Hannah Petersen1,2,3 — 1Frankfurt Institute for Advanced Studies, D-60438 Frankfurt am Main, Germany — 2Institut für Theoretische Physik, Goethe-Universität, D-60438 Frankfurt am Main, Germany — 3GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany — 4Department of Physics and Astronomy, Stony Brook University, US-11794 Stony Brook, USA
The electric conductivity of a hadron gas is calculated within the hadronic transport approach SMASH (Simulating Many Accelerated Strongly-interacting Hadrons). Microscopic non-equilibrium models are well suited to calculate transport coefficitents that synthesize the information on the many-particle dynamics. The temperature dependence of the electric conductivity is extracted using the Green-Kubo formalism for T∼ 100−200 MeV. The results for the electric conductivity show good agreement compared to analytic results from literature [Phys.Rev.D 93, 096012 (2016)] for systems with small number of particle species and simple interactions. Furthermore, the influence of a finite lifetime of resonances on the electric conductivity is investigated. After validating the approuch results for the electric conductivity of a more realistic hadron gas including more particle species are presented.