pith. sign in

arxiv: 1805.07401 · v2 · pith:64PGNV3Fnew · submitted 2018-05-18 · ✦ hep-lat

Mass-improvement of the vector current in three-flavor QCD

classification ✦ hep-lat
keywords beencurrentcutoffeffectsimprovedquarkthree-flavorvector
0
0 comments X
read the original abstract

We determine two improvement coefficients which are relevant to cancel mass-dependent cutoff effects in correlation functions with operator insertions of the non-singlet local QCD vector current. This determination is based on degenerate three-flavor QCD simulations of non-perturbatively O(a) improved Wilson fermions with tree-level improved gauge action. Employing a very robust strategy that has been pioneered in the quenched approximation leads to an accurate estimate of a counterterm cancelling dynamical quark cutoff effects linear in the trace of the quark mass matrix. To our knowledge this is the first time that such an effect has been determined systematically with large significance.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Precision renormalisation and improvement of $N_{\rm f}=3$ lattice QCD with Wilson fermions

    hep-lat 2026-06 unverdicted novelty 6.0

    New non-perturbative renormalization and improvement results for currents and masses in Nf=3 O(a)-improved Wilson QCD at small a using Schrödinger functional boundary conditions and gradient flow tuning.