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oai:tsukuba.repo.nii.ac.jp:00009407
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3:62:5596:218
Kaon B parameter from quenched domain-wall QCD
Khan, A. Ali
Aoki, S.
Aoki, Y.
Burkhalter, R.
Ejiri, S.
Fukugita, M.
Hashimoto, S.
Ishizuka, N.
岩崎, 洋一
イワサキ, ヨウイチ
IWASAKI, Yoichi
Izubuchi, T.
Kanaya, K.
Kaneko, T.
Kuramashi, Y.
Nagai, K. I.
Noaki, J.
Okawa, M.
Shanahan, H.P.
Taniguchi, Y.
宇川, 彰
ウカワ, アキラ
UKAWA, Akira
Yoshie, T.
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 ? 2GeV and 3GeV. 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 = 2GeV) = 0.5746(61), where the error is statistical only, as an estimate of the continuum value in the Image scheme with naive dimensional regularization. This value is smaller but consistent with BK(μ = 2GeV) = 0.628(42) obtained by the JLQCD Collaboration using the Kogut-Susskind quark action. Results for strange quark mass are also reported.
other
Elsevier
2001-03
application/pdf
Nuclear physics. B, Proceedings supplements
1-3
94
287
290
0920-5632
AA10719512
https://tsukuba.repo.nii.ac.jp/record/9407/files/NPBPS_94_287.pdf
eng
https://doi.org/10.1016/S0920-5632(01)00934-3
(c) 2001 Elsevier Science B.V.
open access