Renormalization constants for Wilson fermion lattice QCD with four dynamical flavours

P. Dimopoulos; R. Frezzotti; G. Herdoiza; K. Jansen; V. Lubicz; D. Palao; G. C. Rossi

Renormalization constants for Wilson fermion lattice QCD with four dynamical flavours

High Energy Physics - Lattice 2015-03-17 v1

Authors: P. Dimopoulos , R. Frezzotti , G. Herdoiza , K. Jansen , V. Lubicz , D. Palao , G. C. Rossi

Abstract

We report on an ongoing non-perturbative computation of RI-MOM scheme renormalization constants for the lattice action with four dynamical flavours currently in use by ETMC. For this goal dedicated simulations with four degenerate sea quark flavours are performed at several values of the standard and twisted quark mass parameters. We discuss a method for removing possible O(a) artifacts at all momenta and extrapolating renormalization constant estimators to the chiral limit. We give preliminary results at one lattice spacing.

Keywords

wilson fermion lattice qcd renormalization constants ri-mom scheme non-perturbative computation twisted mass chiral limit

Cite

@article{arxiv.1101.1877,
  title  = {Renormalization constants for Wilson fermion lattice QCD with four dynamical flavours},
  author = {P. Dimopoulos and R. Frezzotti and G. Herdoiza and K. Jansen and V. Lubicz and D. Palao and G. C. Rossi},
  journal= {arXiv preprint arXiv:1101.1877},
  year   = {2015}
}

Comments

Presented at "The XXVIII International Symposium on Lattice Field Theory, Lattice2010", June 14-19, 2010, Villasimius, Italy; 7 pages, 8 figures

Renormalization constants for Wilson fermion lattice QCD with four dynamical flavours

Abstract

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