Nonperturbative O(a) improvement of the Wilson quark action with the renormalization-group-improved gauge action using the Schrödinger functional method
Physical Review D 73 巻
034501- 頁
2006 発行
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034501APS.pdf
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種類 :
全文
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タイトル ( eng ) |
Nonperturbative O(a) improvement of the Wilson quark action with the renormalization-group-improved gauge action using the Schrödinger functional method
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作成者 |
CP-PACS Collaboration
JLQCD Collaboration
Aoki S
Fukugita M
Hashimoto S
Ishizuka N
Iwasaki Y
Kanaya K
Kaneko T
Kuramashi Y
Takeda S
Taniguchi Y
Tsutsui N
Ukawa A
Yamada N
Yoshié T
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収録物名 |
Physical Review D
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巻 | 73 |
開始ページ | 034501 |
抄録 |
We perform a nonperturbative determination of the O(a)-improvement coefficient cSW and the critical hopping parameter kappac for Nf=3, 2, and 0 flavor QCD with the (RG) renormalization-group-improved gauge action using the Schrödinger functional method. In order to interpolate cSW and kappac as a function of the bare coupling, a wide range of beta from the weak coupling region to the moderately strong coupling points used in large-scale simulations is studied. Corrections at finite lattice size of O(a/L) turned out to be large for the RG-improved gauge action, and hence we make the determination at a size fixed in physical units using a modified improvement condition. This enables us to avoid O(a) scaling violations which would remain in physical observables if cSW determined for a fixed lattice size L/a is used in numerical simulations.
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NDC分類 |
物理学 [ 420 ]
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言語 |
英語
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資源タイプ | 学術雑誌論文 |
出版者 |
The American Physical Society
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発行日 | 2006 |
権利情報 |
Copyright (c) 2006 The American Physical Society
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出版タイプ | Version of Record(出版社版。早期公開を含む) |
アクセス権 | オープンアクセス |
収録物識別子 |
[ISSN] 1550-7998
[DOI] http://dx.doi.org/10.1103/PhysRevD.73.014511
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