Improved lattice fermion action for heavy quarks

We develop an improved lattice action for heavy quarks based on Brillouin-type fermions, that have excellent energy-momentum dispersion relation. The leading discretization errors of $O(a)$ and $O(a^2)$ are eliminated at tree-level. We carry out a scaling study of this improved Brillouin fermion act...

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Autores principales: Cho, Yong-Gwi, Hashimoto, Shoji, Jüttner, Andreas, Kaneko, Takashi, Marinkovic, Marina, Noaki, Jun-Ichi, Tsang, Justus Tobias
Lenguaje:eng
Publicado: 2015
Materias:
Acceso en línea:https://dx.doi.org/10.1007/JHEP05(2015)072
http://cds.cern.ch/record/2007382
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author Cho, Yong-Gwi
Hashimoto, Shoji
Jüttner, Andreas
Kaneko, Takashi
Marinkovic, Marina
Noaki, Jun-Ichi
Tsang, Justus Tobias
author_facet Cho, Yong-Gwi
Hashimoto, Shoji
Jüttner, Andreas
Kaneko, Takashi
Marinkovic, Marina
Noaki, Jun-Ichi
Tsang, Justus Tobias
author_sort Cho, Yong-Gwi
collection CERN
description We develop an improved lattice action for heavy quarks based on Brillouin-type fermions, that have excellent energy-momentum dispersion relation. The leading discretization errors of $O(a)$ and $O(a^2)$ are eliminated at tree-level. We carry out a scaling study of this improved Brillouin fermion action on quenched lattices by calculating the charmonium energy-momentum dispersion relation and hyperfine splitting. We present a comparison to standard Wilson fermions and domain-wall fermions.
id cern-2007382
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2015
record_format invenio
spelling cern-20073822022-08-10T12:53:20Zdoi:10.1007/JHEP05(2015)072http://cds.cern.ch/record/2007382engCho, Yong-GwiHashimoto, ShojiJüttner, AndreasKaneko, TakashiMarinkovic, MarinaNoaki, Jun-IchiTsang, Justus TobiasImproved lattice fermion action for heavy quarksParticle Physics - LatticeWe develop an improved lattice action for heavy quarks based on Brillouin-type fermions, that have excellent energy-momentum dispersion relation. The leading discretization errors of $O(a)$ and $O(a^2)$ are eliminated at tree-level. We carry out a scaling study of this improved Brillouin fermion action on quenched lattices by calculating the charmonium energy-momentum dispersion relation and hyperfine splitting. We present a comparison to standard Wilson fermions and domain-wall fermions.We develop an improved lattice action for heavy quarks based on Brillouintype fermions, that have excellent energy-momentum dispersion relation. The leading discretization errors of O(a) and O(a$^{2}$) are eliminated at tree-level. We carry out a scaling study of this improved Brillouin fermion action on quenched lattices by calculating the charmonium energy-momentum dispersion relation and hyperfine splitting. We present a comparison to standard Wilson fermions and domain-wall fermions.We develop an improved lattice action for heavy quarks based on Brillouin-type fermions, that have excellent energy-momentum dispersion relation. The leading discretization errors of $O(a)$ and $O(a^2)$ are eliminated at tree-level. We carry out a scaling study of this improved Brillouin fermion action on quenched lattices by calculating the charmonium energy-momentum dispersion relation and hyperfine splitting. We present a comparison to standard Wilson fermions and domain-wall fermions.arXiv:1504.01630UTHEP-673KEK-CP-321CERN-PH-TH-2015-074CERN-PH-TH-2015-074oai:cds.cern.ch:20073822015-04-07
spellingShingle Particle Physics - Lattice
Cho, Yong-Gwi
Hashimoto, Shoji
Jüttner, Andreas
Kaneko, Takashi
Marinkovic, Marina
Noaki, Jun-Ichi
Tsang, Justus Tobias
Improved lattice fermion action for heavy quarks
title Improved lattice fermion action for heavy quarks
title_full Improved lattice fermion action for heavy quarks
title_fullStr Improved lattice fermion action for heavy quarks
title_full_unstemmed Improved lattice fermion action for heavy quarks
title_short Improved lattice fermion action for heavy quarks
title_sort improved lattice fermion action for heavy quarks
topic Particle Physics - Lattice
url https://dx.doi.org/10.1007/JHEP05(2015)072
http://cds.cern.ch/record/2007382
work_keys_str_mv AT choyonggwi improvedlatticefermionactionforheavyquarks
AT hashimotoshoji improvedlatticefermionactionforheavyquarks
AT juttnerandreas improvedlatticefermionactionforheavyquarks
AT kanekotakashi improvedlatticefermionactionforheavyquarks
AT marinkovicmarina improvedlatticefermionactionforheavyquarks
AT noakijunichi improvedlatticefermionactionforheavyquarks
AT tsangjustustobias improvedlatticefermionactionforheavyquarks