Axial U(1) symmetry at high temperatures in $N_f=2+1$ lattice QCD with chiral fermions

28 Jul 2021, 05:30
15m
Oral presentation QCD at nonzero Temperature and Density QCD at nonzero Temperature and Density

Speaker

Kei Suzuki (JAEA)

Description

The axial U(1) anomaly in high-temperature QCD plays an important role to understand the phase diagram of QCD. The previous works by JLQCD Collaboration studied high-temperature QCD using 2-flavor dynamical chiral fermions, such as the domain-wall fermion and reweighted overlap fermion. We extend our simulations to QCD with 2+1 flavor dynamical quarks, where the masses of the up, down, and strange quarks are near the physical point, and the temperatures are close to or higher than the pseudocritical temperature. In this talk, we will present the results for the topological susceptibility, axial U(1) susceptibility, and hadronic collelators.

Primary authors

Sinya Aoki (Kyoto University) Yasumichi Aoki (RIKEN) Hidenori Fukaya (Osaka Universcity) Shoji Hashimoto (KEK) Issaku Kanamori (R-CCS, RIKEN) Takashi Kaneko (KEK) Yoshifumi Nakamura (RIKEN) Christian Rohrhofer (Osaka University) Kei Suzuki (JAEA)

Presentation materials