Controlling residual chiral symmetry breaking effects of domain wall fermions in QCD thermodynamics

15 Feb 2023, 16:03
1m
Lecture Hall (6F)

Lecture Hall (6F)

Poster presentation Poster

Speaker

Yasumichi Aoki (RIKEN)

Description

Investigation of QCD thermodynamics for $N_f$=2+1 along the lines of constant physics with Möbius domain wall fermions is underway. At our coarsest lattice $N_t$=12, reweighting to overlap fermions is not successful. To use domain wall fermions with the residual mass larger than average physical $ud$ quarks, careful treatments of the residual chiral symmetry breaking are necessary. One of the examples is the chiral condensate where a UV power divergence associated with the residual chiral symmetry breaking emerges with a coefficient not known a priori. In this presentation we introduce first the setup of the computations and then discuss methodologies to overcome potential problems towards the continuum limit in this setup.

Recording and publishing yes

Primary authors

Yasumichi Aoki (RIKEN) Sinya Aoki (Kyoto University) Hidenori Fukaya (Osaka University) Jishnu Goswami (RIKEN Center for Computational Science) Shoji Hashimoto (KEK) Issaku Kanamori (RIKEN) Takashi Kaneko (KEK) Yoshifumi Nakamura (RIKEN AICS) Yu Zhang (RIKEN R-CCS)

Presentation materials