Heidelberg 2015 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 5: Heavy Ion Collisions and QCD Phases 1

HK 5.7: Talk

Monday, March 23, 2015, 16:15–16:30, T/HS1

Shear viscosity from a large-Nc NJL model — •Robert Lang¹, Norbert Kaiser¹, and Wolfram Weise^2,1 — ¹TUM Physik Department, Garching, Germany — ²ECT* Villa Tambosi, Villazzano (TN), Italy

We calculate the ratio of shear viscosity to entropy density within a large-Nc Nambu--Jona-Lasinio model. A consistent treatment of the Kubo formalism incorporating the full Dirac structure of the quark self-energy from mesonic fluctuations is presented. We compare our results to common approximation schemes applied to the Kubo formalism and to the quark self-energy. This work has been supported by BMBF.