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Differential decay rate for B->πιν semileptonic decays
http://hdl.handle.net/2241/91460
http://hdl.handle.net/2241/9146035da01f3-1f34-4c2c-961e-a58a328b1e27
名前 / ファイル | ライセンス | アクション |
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NPBPS_94_329.pdf (128.1 kB)
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Item type | Preprint(1) | |||||
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公開日 | 2007-10-29 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Differential decay rate for B->πιν semileptonic decays | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_1843 | |||||
タイプ | other | |||||
アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
著者 |
Aoki, S.
× Aoki, S.× Burkhalter, R.× Fukugita, M.× Hashimoto, S.× Ishikawa, K-I.× Ishizuka, N.× 岩崎, 洋一× Kanaya, K.× Kaneko, T.× Kuramashi, Y.× Okawa, M.× Onogi, T.× Tominaga, S.× Tsutsui, N.× 宇川, 彰× Yamada, N.× Yoshi´e, T. |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | We present our study on B → πlν semileptonic decay form factors using NRQCD action for heavy quark. In the analysis, we use the form factors f1(υ・kπ) and f2(υ・kπ) defined in the context of heavy quark effective theory by Burdman et al.. Since the NRQCD action for heavy quark respects the heavy quark symmetry, our results are described by the HQET form factors most naturally. From a quenched lattice QCD simulation at β=5.9 on a 163 × 48 lattice, we obtain the form factors f1(υ・kπ) and f2(υ・kπ), and find that their 1/mB correction is small. The limit of physical heavy and light quark masses can be reached without introducing any model function, and we obtain a prediction for the differential decay rate dΓ/dq2. We also discuss the soft pion limit of the form factors. | |||||
言語 | en | |||||
書誌情報 |
en : Nuclear physics. B, Proceedings supplements 巻 94, 号 1-3, p. 329-332, 発行日 2001-03 |
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ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0920-5632 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10719512 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1016/S0920-5632(01)00954-9 | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | (c) 2001 Elsevier Science B.V. | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | Elsevier |