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ID 14420
file
creator
JLQCD, Collaboration
Aoki, S
Fukugita, M
Hashimoto, S
Ishizuka, N
Kwasaki, Y
Kanaya, K
Kaneda, T
Kaya, S
Kumarashi, Y
Onogi, T
Tominaga, S
Tsutsui, N
Ukawa, A
Yamada, N
Yoshie, T
subject
NRQCD heavy quark
clover light quark action
NDC
Physics
abstract
We report results on semileptonic B ---> pilepton anti-neutrino decay form factors near qmax[2] using NRQCD heavy quark and clover light quark actions and currents improved through O(αa). An inconsistency with the soft pion relation f[0] (qmax[2] = fB / fπ found in a previous work is confirmed, and a possible solution with nonperturbative renormalization is discussed. We find that f+(q[2]) is well described by the B* pole near qmax[2], and its 1/MB scaling is also consistent with the prediction of the pole dominance model.
journal title
Nuclear Physics B - Proceedings Supplements
volume
Volume 83-84
start page
325
end page
327
date of issued
2000-04
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) 2000 Elsevier B.V.
relation is version of URL
http://dx.doi.org/10.1016/S0920-5632(00)91662-1
department
Graduate School of Science