A novel method for the physical scale setting on the lattice and its application to $N_f$=4 simulations

Abstract

This letter reports on a new procedure for the lattice spacing setting that takes advantage of the very precise determination of the strong coupling in Taylor scheme. Although it can be applied for the physical scale setting with the experimental value of ${\Lambda }_{\overline{\mathrm{MS}}}$ as an input, the procedure is particularly appropriate for relative "calibrations". The method is here applied for simulations with four degenerate light quarks in the sea and leads to prove that their physical scale is compatible with the same one for simulations with two light and two heavy flavours.

5 pages, 2 tables

References in corpus (4)

• Lattice gluodynamics computation of Landau-gauge Green's functions in the deep infrared
• Non-perturbative comparison of QCD effective charges
• On the reduction of hypercubic lattice artifacts
• High statistics determination of the strong coupling constant in Taylor scheme and its OPE Wilson coefficient from lattice QCD with a dynamical charm

Cited by in corpus (3)

• Probing the tensor structure of lattice three-gluon vertex in Landau gauge
• Three-gluon running coupling from lattice QCD at $N_f=2+1+1$: a consistency check of the OPE approach
• Dynamical quarks effects on the gluon propagation and chiral symmetry restoration