Speaker
Yasumichi Aoki
(KEK)
Description
We study the topological charge in $N_f=2$ QCD at finite temperature
using Mobius domain-wall fermions with reweighting to ovelap fermions.
The susceptibility $\chi_t$ of the topological charge is studied
in the high temperature phase with varying quark mass.
Last year, we reported on a strong suppression of the susceptibility,
observed below a certain value of the quark mass on a fixed spatial volume.
We extend this study by changing the volume to both smaller and larger direction.
The relation with the restoration of $U_A(1)$ is discussed.
Primary author
Yasumichi Aoki
(KEK)
Co-authors
Dr
Guido Cossu
(Univ. Edinburgh)
Dr
Hidenori Fukaya
(Osaka University)
Dr
Kei Suzuki
(High Energy Accelerator Research Organization)
Dr
Shoji Hashimoto
(KEK)
Prof.
Sinya Aoki
(Yukawa Institute for Theoretical Physics)
Dr
Takashi Kaneko
(KEK)