Improved lattice fermion action for heavy quarks
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(a2) 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.
1-32
Cho, Yong-Gwi
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Hashimoto, Shoji
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Juttner, Andreas
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Kaneko, Takashi
c02e60bd-618e-4c8a-b0e1-22a19d877c50
Marinkovic, Marina
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Noaki, Jun-Ichi
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Tsang, Justus Tobias
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14 May 2015
Cho, Yong-Gwi
3f07652d-c19b-40c5-9d2a-1cbc1b840164
Hashimoto, Shoji
2b3be047-9e76-42d7-ba7e-50f230e88446
Juttner, Andreas
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Kaneko, Takashi
c02e60bd-618e-4c8a-b0e1-22a19d877c50
Marinkovic, Marina
e3294394-a296-488c-816a-5c8111b381ec
Noaki, Jun-Ichi
181c1ee5-12b1-4026-9de0-53a0e949ae2e
Tsang, Justus Tobias
e4648385-cecf-4c02-b13e-c06312f16b12
Cho, Yong-Gwi, Hashimoto, Shoji, Juttner, Andreas, Kaneko, Takashi, Marinkovic, Marina, Noaki, Jun-Ichi and Tsang, Justus Tobias
(2015)
Improved lattice fermion action for heavy quarks.
Journal of High Energy Physics, 2015 (72), .
(doi:10.1007/JHEP05(2015)072).
Abstract
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(a2) 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.
Text
1504.01630.pdf
- Author's Original
Text
art%3A10.1007%2FJHEP05%282015%29072.pdf
- Version of Record
More information
Accepted/In Press date: 27 April 2015
Published date: 14 May 2015
Organisations:
Theoretical Partical Physics Group
Identifiers
Local EPrints ID: 393643
URI: http://eprints.soton.ac.uk/id/eprint/393643
PURE UUID: a7c3f25e-4e04-4be2-8c69-8a9232e233f9
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Date deposited: 29 Apr 2016 09:06
Last modified: 15 Mar 2024 03:20
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Contributors
Author:
Yong-Gwi Cho
Author:
Shoji Hashimoto
Author:
Takashi Kaneko
Author:
Marina Marinkovic
Author:
Jun-Ichi Noaki
Author:
Justus Tobias Tsang
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