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HK: Fachverband Physik der Hadronen und Kerne
HK 20: Schwerionenkollisionen und QCD Phasen
HK 20.3: Talk
Tuesday, March 18, 2014, 14:30–14:45, HZ 7
Dynamical simulation of a linear sigma model near the critical point — •Christian Wesp1, Alex Meistrenko1, Hendrik van Hees2, and Carsten Greiner1 — 1Institut für Theoretische Physik, Goethe-Universität Frankfurt, Max-von-Laue-Straße 1, D-60438 Frankfurt, Germany — 2Frankfurt Institute for Advanced Studies, Ruth-Moufang-Straße 1, D-60438 Frankfurt, Germany
The intention of this study is the search for signatures of the chiral
phase transition. To investigate the impact of flucutations, e.g. of the
baryon number, on the transition or a critical point, the linear sigma
model is treated in a dynamical 3+1D numerical simulation. Chiral fields
are approximated as classical fields, quarks are described by quasi
particles in a Vlasov equation. Additional dynamic is implemented by
quark-quark and quark-sigma-field interaction. For a consistent
description of field-particle interactions, a new
Monte-Carlo-Langevin-like formalism has been developed and is discussed.
Supported by HGS-HIRe.