Speaker
Dr
Guido Cossu
(KEK)
Description
Possible (effective) restoration of the axial U(1) symmetry at finite
temperature has attracted a lot of attention in the last few years
thanks to the development of the chiral lattice actions and
algorithmic improvements. In our previous work we utilized the overlap
fermion formulation to show an evidence for a restoration of the axial symmetry above the phase transition. In this work we address the
systematics of the previous study by using the Mobius domain-wall
fermions that allow for larger-scale simulations while maintaining
excellent chiral properties. Different volumes and Ls, the fifth
dimension controlling the chirality of the action, and lattice
spacings are considered. We study the susceptibilities related to the
axial U(1) symmetry, the screening masses, and the spectrum of the
Dirac operator (see also A. Tomiya talk).
Primary author
Dr
Guido Cossu
(KEK)
Co-authors
Mr
Akio Tomiya
(Osaka University)
Dr
Hidenori Fukaya
(Osaka University)
Dr
Jun-ichi Noaki
(KEK)
Prof.
Shoji Hashimoto
(KEK)
Prof.
Takashi Kaneko
(KEK)
