Theoretical physics / Elméleti fizika

Rob Pisarski (BNL, Brookhaven): Matrix model for the chiral phase transition

Europe/Budapest
Tanacsterem

Tanacsterem

Description
I develop an effective theory for the region near the phase transition at nonzero temperature in QCD, in the "semi" Quark-Gluon Plasma. The model marries a typical linear sigma model with a matrix theory for the Polyakov loop. We concentrate on results for the baryon susceptibilities up to sixth order. We also discuss the possible role of tetraquark fields in the chiral phase transition.