B ---> pilepton anti-neutrino from factors with NRQCD heavy quark and clover light quark actions
Use this link to cite this item : https://ir.lib.hiroshima-u.ac.jp/00014420
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
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subject | NRQCD heavy quark
clover light quark action
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NDC |
Physics
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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.
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journal title |
Nuclear Physics B - Proceedings Supplements
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volume | Volume 83-84
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start page | 325
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end page | 327
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date of issued | 2000-04
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publisher | Elsevier B.V.
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issn | 0920-5632
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publisher doi | |
language |
eng
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nii type |
Journal Article
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HU type |
Journal Articles
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DCMI type | text
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format | application/pdf
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text version | author
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rights | Copyright (c) 2000 Elsevier B.V.
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relation is version of URL | http://dx.doi.org/10.1016/S0920-5632(00)91662-1
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department |
Graduate School of Science
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