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ID 14448
file
creator
JLQCD, Collaboration
Yamada, N.
Aoki, S.
Burkhalter, R.
Fukugita, M.
Hashimoto, S.
Ishizuka, N.
Iwasaki, Y.
Kanaya, K.
Kaneko, T.
Kuramashi, Y.
Onogi, T.
Tominaga, S.
Tsutsui, N.
Ukawa, A.
Yoshie, T.
subject
NRQCD
B0-anti-B0
O(a)-improved action
NDC
Physics
abstract
We present our recent results for the B-parameters, which parameterize the ΔB=2 transition amplitudes. Calculations are made in quenched QCD at β=5.7, 5.9, and 6.1, using NRQCD for heavy quark and the O(a)-improved action for light quark. The operators are perturbatively renormalized including corrections of O(αs/amQ). We examine scaling behavior of the B-parameters in detail, and discuss the systematic uncertainties using scatter of results with different analysis procedures adopted. As a result, we find BBd(mb) = 0.84(2)(8), BBs/BBd = 1.017(10)(+4-0) and BSs(mb)= 0.87(1)(9)(+1-0) in the quenched approximation.
journal title
Nuclear Physics B - Proceedings Supplements
volume
Volume 94
issue
Issue 1-3
start page
379
end page
382
date of issued
2001-03
publisher
Elsevier B.V.
issn
0920-5632
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
author
rights
Copyright (c) 2001 Elsevier B.V.
relation is version of URL
http://dx.doi.org/10.1016/S0920-5632(01)00980-X
department
Graduate School of Science