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...
Autores principales: | , , , , , , |
---|---|
Lenguaje: | eng |
Publicado: |
2015
|
Materias: | |
Acceso en línea: | https://dx.doi.org/10.1007/JHEP05(2015)072 http://cds.cern.ch/record/2007382 |
_version_ | 1780946357424488448 |
---|---|
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 |