Jul 22 – 28, 2018
Kellogg Hotel and Conference Center
EST timezone

Axial U(1) symmetry and Dirac spectra in high-temperature phase of $N_f=2$ lattice QCD

Jul 24, 2018, 2:00 PM
20m
Centennial (Kellogg Hotel and Conference Center)

Centennial

Kellogg Hotel and Conference Center

219 S Harrison Rd, East Lansing, MI 48824
Nonzero Temperature and Density Nonzero Temperature and Density

Speaker

Dr Kei Suzuki (KEK)

Description

We investigate the axial $U(1)$ symmetry in the phase above the critical temperature in $N_f=2$ lattice QCD, where the ensembles are generated with Mobius domain-wall fermions, and the overlap/domain-wall reweighting is applied. We show the $U(1)_A$ susceptibility extracted from the spectra of the overlap Dirac eigenmodes and discuss its temperature, quark-mass, and spatial volume dependence. The behavior of $U(1)_A$ susceptibility is compared with that of topological susceptibility and their relation is discussed.

Primary author

Dr Kei Suzuki (KEK)

Co-authors

Dr Guido Cossu (The University of Edinburgh) Prof. Hidenori Fukaya (Osaka University) Dr Shoji Hashimoto (KEK) Prof. Sinya Aoki (YITP) Yasumichi Aoki (KEK)

Presentation materials