Kaon B parameter from quenched domain-wall QCD

Physical Review D 64 巻 114506- 頁 2001 発行
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タイトル ( eng )
Kaon B parameter from quenched domain-wall QCD
作成者
CP-PACS Collaboration
Ali Khan A
Aoki S
Aoki Y
Burkhalter R
Ejiri S
Fukugita M
Hashimoto S
Ishizuka N
Iwasaki Y
Izubuchi T
Kanaya K
Kaneko T
Kuramashi Y
Nagai K-I
Shanahan H. P.
Taniguchi Y
Ukawa A
Yoshié T
収録物名
Physical Review D
64
開始ページ 114506
抄録
We report on a calculation of BK with domain-wall fermion action in quenched QCD. Simulations are made with a renormalization group improved gauge action at β=2.6 and 2.9 corresponding to a-1≈2 and 3 GeV. Effects due to finite fifth dimensional size N5 and finite spatial size Nσ are examined in detail. Matching to the continuum operator is made perturbatively at one loop order. We obtain BK(μ=2 GeV)=0.5746(61)(191), where the first error is statistical and the second error represents an estimate of scaling violation and O(α2) errors in the renormalization factor added in quadrature, as an estimate of the continuum value in the modified minimal subtraction (MS̅) scheme with naive dimensional regularization. This value is consistent, albeit somewhat small, with BK(μ=2 GeV)=0.628(42) obtained by the JLQCD Collaboration using the Kogut-Susskind quark action. Results for light quark masses are also reported.
NDC分類
物理学 [ 420 ]
言語
英語
資源タイプ 学術雑誌論文
出版者
The American Physical Society
発行日 2001
権利情報
Copyright (c) 2001 The American Physical Society
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.64.114506 ~の異版である