Speaker
Akio Tomiya
(RIKEN BNL Research Center)
Description
We investigate the order of phase transition in
three flavor QCD with a background $U(1)$ magnetic field using
the standard staggered action with the plaquette gauge action.
We perform simulations for three volumes $N_\sigma = 8,16,24$ with fixed mass $ma=0.030$ and temporal extent $N_\tau=4$, which is expected to show crossover for vanishing magnetic field.
We apply physically same magnitude of magnetic field $\hat{b}=0.9=\sqrt{2\pi N_b/N_\sigma^2}$ for each volume. We measure the chiral condensates and
Polyakov loop and calculate their susceptibility and Binder cumulant.
We find that the transition becomes first order like transition with hysteresis in the Monte-Carlo history
from crossover for non-zero magnetic field on the system.
Authors
Akio Tomiya
(RIKEN BNL Research Center)
Heng-Tong Ding
(Central China Normal University)
Swagato Mukherjee
(Brookhaven National Laboratory)
Christian Schmidt
(University of Bielefeld)
