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ID 14571
file
e114506.pdf 287 KB
creator
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
NDC
Physics
abstract
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.
journal title
Physical Review D
volume
Volume 64
start page
114506
date of issued
2001
publisher
The American Physical Society
issn
1550-7998
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
rights
Copyright (c) 2001 The American Physical Society
relation is version of URL
http://dx.doi.org/10.1103/PhysRevD.64.114506
department
Graduate School of Science