Dynamical simulation of a linear sigma model near the critical point

20 May 2014, 16:30
2h
spectrum (darmstadtium)

spectrum

darmstadtium

Board: B-24
Poster QCD Phase Diagram Poster session

Speaker

Christian Wesp (Goethe Universität Frankfurt)

Description

The intention of this study is the search for signatures of the chiral phase transition and the impact of non-equilibrium effects. To investiage the impact of fluctuations, e.g. on the baryon density, near the chritical point or the chiral phase transition of QCD, we developed a 3+1D numerical, non-equilibrium simulation of an effective linear sigma model. Chiral fields are approximated as classical fields, quarks are described by quasi-particles via a Vlasov equation. For additional dynamics, kinetic quark-quark and chemical quark-sigma interactions have been implemented. The challenge is the consistent description of hard interactions between particles and classical fields. Therefore a new Monte-Carlo-Langevin-like formalism has been developed and is discussed.

Primary author

Christian Wesp (Goethe Universität Frankfurt)

Co-authors

Mr Alex Meistrenko (ITP Uni Frankfurt) Carsten Greiner (University of Frankfurt) Hendrik van Hees (Goethe University Frankfurt)

Presentation Materials