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Symanzik Improvement with Dynamical Charm: A 3+1 Scheme for Wilson Quarks

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arxiv 1805.01661 v2 pith:WY4L4USJ submitted 2018-05-04 hep-lat

Patrick Fritzsch , Rainer Sommer , Felix Stollenwerk , Ulli Wolff This is my paper · ORCID
classification hep-lat
keywords charmdynamicalschemeimprovementmathrmquarkssimulationswilson
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We discuss the problem of lattice artefacts in QCD simulations enhanced by the introduction of dynamical charmed quarks. In particular, we advocate the use of a massive renormalization scheme with a close to realistic charm mass. To maintain O(a) improvement for Wilson type fermions in this case we define a finite size scheme and carry out a nonperturbative estimation of the clover coefficient $c_\mathrm{sw}$. It is summarized in a fit formula $c_\mathrm{sw}(g_0^2)$ that defines an improved action suitable for future dynamical charm simulations.

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Cited by 4 Pith papers

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

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

    hep-lat 2026-06 unverdicted novelty 6.0 of 10

    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.

  2. Hybrid static potentials and gluelumps on $N_f=3+1$ ensembles

    hep-lat 2025-01 conditional novelty 6.0 of 10

    New lattice QCD measurements of hybrid static potentials, static-light thresholds, and gluelump masses on N_f=3+1 ensembles with pions near 420 MeV, using Laplace trial states.

  3. Static-light meson spectroscopy with optimal distillation profiles

    hep-lat 2025-01 conditional novelty 5.0 of 10

    Profile-weighted distillation reduces excited-state contamination for static-light and static-charm mesons and yields new spectra and mass splittings on two N_f = 3+1 QCD ensembles.

  4. Baryon masses with C-periodic boundary conditions

    hep-lat 2026-02 conditional novelty 4.0 of 10

    First numerical estimates of the C-periodic 1-q connected contributions to the Omega-minus two-point function, plus preliminary proton and Omega masses at m_pi ~ 400 MeV.

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