Thermal phase transitions in rotating QCD with dynamical quarks

TL;DR

This study investigates how relativistic rotation affects the critical temperatures in QCD with dynamical quarks, revealing that overall, the pseudo-critical temperatures increase with angular velocity, contrasting some model predictions.

Contribution

First lattice results for rotating QCD with dynamical fermions are presented, analyzing separate effects of gluon and fermion rotations on critical temperatures.

Findings

Gluon and fermion rotations have opposite effects on critical temperatures.

Overall, the pseudo-critical temperatures increase with angular velocity.

Dependence on pion mass is discussed.

Abstract

Relativistic rotation causes a change of QCD critical temperatures. Various phenomenological and effective models predict a decrease of the critical temperatures in rotating QCD. Nevertheless, lattice simulations showed that the critical temperature in gluodynamics increases due to rotation. We extend the lattice study to the theory with dynamical fermions. We present the first lattice results for rotating QCD with $N_f=2$ dynamical clover-improved Wilson quarks. We also study separately the effect of rotation on gluonic and fermionic degrees of freedom. It is shown that separate rotations of gluons and fermions have opposite effects on the critical temperatures. In aggregate, the pseudo-critical temperatures in QCD increase with angular velocity. Dependence of the results on the pion mass is also discussed.