Radiative leptonic B-c -> gamma l(v)over-bar decay in effective field theory beyond leading order
文献类型：期刊论文
| 作者 | Wang, W; Zhu, RL |
| 刊名 | EUROPEAN PHYSICAL JOURNAL C
 |
| 出版日期 | 2015 |
| 卷号 | 75期号:8页码:360 |
| 通讯作者 | Zhu, RL (reprint author), Shanghai Jiao Tong Univ, Dept Phys & Astron, Shanghai Key Lab Particle Phys & Cosmol, INPAC, Shanghai 200240, Peoples R China. |
| 英文摘要 | We study the radiative leptonic B-c -> gamma l (v) over bar decays in nonrelativistic QCD effective field theory, and we explore the contribution from a fast-moving photon. As a result, interactions between the photon and the heavy quarks can be integrated out, resulting in the factorization formula for the decay amplitude. We calculate not only the relevant short-distance coefficients at leading order and next-to-leading order in alpha(s), but also the nonrelativistic corrections at the order |v|(2) in our analysis. We find that the QCD corrections can significantly decrease the branching ratio, and this is of great importance in extracting the long-distance operator matrix elements of B-c. For phenomenological application, we present our results for the photon energy, lepton energy and lepton-neutrino invariant mass distribution. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Particles & Fields |
| 关键词[WOS] | QCD SUM-RULES ; MESON DISTRIBUTION AMPLITUDE ; WEAK DECAYS ; MODEL ; LIFETIME ; B-C(+) |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/20900]  |
| 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 | Wang, W,Zhu, RL. Radiative leptonic B-c -> gamma l(v)over-bar decay in effective field theory beyond leading order[J]. EUROPEAN PHYSICAL JOURNAL C,2015,75(8):360. |
| APA | Wang, W,&Zhu, RL.(2015).Radiative leptonic B-c -> gamma l(v)over-bar decay in effective field theory beyond leading order.EUROPEAN PHYSICAL JOURNAL C,75(8),360. |
| MLA | Wang, W,et al."Radiative leptonic B-c -> gamma l(v)over-bar decay in effective field theory beyond leading order".EUROPEAN PHYSICAL JOURNAL C 75.8(2015):360. |
入库方式： OAI收割
来源：理论物理研究所
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