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

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...

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Detalles Bibliográficos
Autores principales: Fritzsch, Patrick, Sommer, Rainer, Stollenwerk, Felix, Wolff, Ulli
Lenguaje:eng
Publicado: 2018
Materias:
hep-lat
Particle Physics - Lattice
Acceso en línea:https://dx.doi.org/10.1007/JHEP06(2018)025
https://dx.doi.org/10.1007/JHEP10(2020)165
http://cds.cern.ch/record/2316396
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author Fritzsch, Patrick
Sommer, Rainer
Stollenwerk, Felix
Wolff, Ulli
author_facet Fritzsch, Patrick
Sommer, Rainer
Stollenwerk, Felix
Wolff, Ulli
author_sort Fritzsch, Patrick
collection CERN
description 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$_{sw}$. It is summarized in a fit formula c$_{sw}$(g$_{0}^{2}$ ) that defines an improved action suitable for future dynamical charm simulations.
id cern-2316396
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2018
record_format invenio
spelling cern-23163962023-03-14T16:53:59Zdoi:10.1007/JHEP06(2018)025doi:10.1007/JHEP10(2020)165http://cds.cern.ch/record/2316396engFritzsch, PatrickSommer, RainerStollenwerk, FelixWolff, UlliSymanzik Improvement with Dynamical Charm: A 3+1 Scheme for Wilson Quarkshep-latParticle Physics - LatticeWe 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$_{sw}$. It is summarized in a fit formula c$_{sw}$(g$_{0}^{2}$ ) that defines an improved action suitable for future dynamical charm simulations.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.arXiv:1805.01661CERN-TH-2018-084DESY-18-058HU-EP-18-10oai:cds.cern.ch:23163962018-05-04
spellingShingle hep-lat
Particle Physics - Lattice
Fritzsch, Patrick
Sommer, Rainer
Stollenwerk, Felix
Wolff, Ulli
Symanzik Improvement with Dynamical Charm: A 3+1 Scheme for Wilson Quarks
title Symanzik Improvement with Dynamical Charm: A 3+1 Scheme for Wilson Quarks
title_full Symanzik Improvement with Dynamical Charm: A 3+1 Scheme for Wilson Quarks
title_fullStr Symanzik Improvement with Dynamical Charm: A 3+1 Scheme for Wilson Quarks
title_full_unstemmed Symanzik Improvement with Dynamical Charm: A 3+1 Scheme for Wilson Quarks
title_short Symanzik Improvement with Dynamical Charm: A 3+1 Scheme for Wilson Quarks
title_sort symanzik improvement with dynamical charm: a 3+1 scheme for wilson quarks
topic hep-lat
Particle Physics - Lattice
url https://dx.doi.org/10.1007/JHEP06(2018)025
https://dx.doi.org/10.1007/JHEP10(2020)165
http://cds.cern.ch/record/2316396
work_keys_str_mv AT fritzschpatrick symanzikimprovementwithdynamicalcharma31schemeforwilsonquarks
AT sommerrainer symanzikimprovementwithdynamicalcharma31schemeforwilsonquarks
AT stollenwerkfelix symanzikimprovementwithdynamicalcharma31schemeforwilsonquarks
AT wolffulli symanzikimprovementwithdynamicalcharma31schemeforwilsonquarks

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