B ---> pilepton anti-neutrino from factors with NRQCD heavy quark and clover light quark actions
Nuclear Physics B - Proceedings Supplements Volume 83-84
Page 325-327
published_at 2000-04
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| File | |
| Title ( eng ) |
B ---> pilepton anti-neutrino from factors with NRQCD heavy quark and clover light quark actions
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| 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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| Source Title |
Nuclear Physics B - Proceedings Supplements
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| Volume | 83-84 |
| Start Page | 325 |
| End Page | 327 |
| 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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| Keywords |
NRQCD heavy quark
clover light quark action
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| NDC |
Physics [ 420 ]
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| Language |
eng
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| Resource Type | journal article |
| Publisher |
Elsevier B.V.
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| Date of Issued | 2000-04 |
| Rights |
Copyright (c) 2000 Elsevier B.V.
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| Publish Type | Author’s Original |
| Access Rights | open access |
| Source Identifier |
[ISSN] 0920-5632
[DOI] 10.1016/S0920-5632(00)91662-1
[DOI] http://dx.doi.org/10.1016/S0920-5632(00)91662-1
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