First study of Nf = 2 + 1 + 1 lattice QCD with physical domain-wall quarks
Journal
Proceedings of Science
Journal Volume
363
Date Issued
2019
Author(s)
Abstract
Using 10-16 units of Nvidia DGX-1, we have generated the first gauge ensemble for Nf = 2 + 1 + 1 lattice QCD with physical (u/d, s, c) domain-wall quarks, on the 644 lattice with lattice spacing a ? 0.064 fm (L > 4 fm, and Mπ L > 3). The salient feature of this gauge ensemble is that the chiral symmetry is preserved to a high precision and all topological sectors are sampled ergodically. In this paper, we present the first results of the topological susceptibility and the ground-state hadron mass spectra. ? Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).
Subjects
Domain walls; Elementary particles; Gages; Ground state; Mass spectrometry; Quantum theory; Topology; Chiral symmetry; High-precision; Lattice QCD; Lattice spacing; Mass spectra; Physical domain; Salient features; Topological susceptibility; Lattice theory
Type
conference paper