Speaker
Győző Kovács
(Wigner RCP)
Description
We investigated the QCD phase diagram at large $N_c$ in a Polyakov loop extended quark-meson model with particular attention to the critical point(s). An exciting behavior was seen, as the well-known $N_c=3$ CEP disappears rapidly and leaves a crossover transition in the whole phase boundary. Furthermore, for large enough $N_c$, a distinct CEP emerges along the temperature axis. Moreover, besides the confined chirally broken and the deconfined chirally symmetric phase, the quarkyonic-type phase was found, which shows confinement and chiral restoration. For these regions of the phase diagram, the pressure also had the expected $N_c^0$, $N_c^2$, and $N_c^1$ scaling, respectively.
