Heavy-to-light currents at NNLO in SCET and semi-inclusive (B)over-bar -> X(s)l(+)l(-) decay
文献类型：期刊论文
| 作者 | Bell, G ; Beneke, M ; Huber, T ; Li, XQ |
| 刊名 | NUCLEAR PHYSICS B
 |
| 出版日期 | 2011 |
| 卷号 | 843期号:1页码:143-176 |
| 关键词 | COLLINEAR EFFECTIVE THEORY MESON FORM-FACTORS B DECAYS VERTEX CORRECTIONS QCD FACTORIZATION STANDARD MODEL PHOTON ENERGY 2-LOOP RESULT LARGE RECOIL QUARK |
| ISSN号 | 0550-3213 |
| 通讯作者 | Li, XQ (reprint author), Henan Normal Univ, Dept Phys, Xinxiang 453007, Henan, Peoples R China. |
| 英文摘要 | We perform the two-loop matching calculation for heavy-to-light currents from QCD onto soft-collinear effective theory for the complete set of Dirac structures. The newly obtained matching coefficients enter several phenomenological applications, of which we discuss heavy-to-light form factor ratios and exclusive radiative decays. as well as the semi-inclusive decay (B) over bar -> X(s)l(+)l(-). For this decay, we observe a significant shift of the forward-backward asymmetry zero and find q(0)(2) = (3.34(-0.25)(+0.22)) GeV2 for an invariant mass cut, m(X)(cut) = 2.0 GeV. (C) 2010 Elsevier B.V. All rights reserved. |
| 学科主题 | Physics |
| 收录类别 | SCI |
| 资助信息 | DFG [Sonderforschungsbereich/Transregio 9]; Helmholtz alliance "Physics at the Terascale"; Alexander-von-Humboldt Stiftung; National Natural Science Foundation [11005032] |
| 原文出处 | http://dx.doi.org/10.1016/j.nuclphysb.2010.09.022 |
| 语种 | 英语 |
| WOS记录号 | WOS:000285024100006 |
| 公开日期 | 2013-05-17 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/14423]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 推荐引用方式 GB/T 7714 | Bell, G,Beneke, M,Huber, T,et al. Heavy-to-light currents at NNLO in SCET and semi-inclusive (B)over-bar -> X(s)l(+)l(-) decay[J]. NUCLEAR PHYSICS B,2011,843(1):143-176. |
| APA | Bell, G,Beneke, M,Huber, T,&Li, XQ.(2011).Heavy-to-light currents at NNLO in SCET and semi-inclusive (B)over-bar -> X(s)l(+)l(-) decay.NUCLEAR PHYSICS B,843(1),143-176. |
| MLA | Bell, G,et al."Heavy-to-light currents at NNLO in SCET and semi-inclusive (B)over-bar -> X(s)l(+)l(-) decay".NUCLEAR PHYSICS B 843.1(2011):143-176. |
入库方式： OAI收割
来源：理论物理研究所
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