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题名: Estimation of semileptonic decays of B-c meson to S-wave charmonia with nonrelativistic QCD
作者: Qiao, CF ;  Zhu, RL
刊名: PHYSICAL REVIEW D
出版日期: 2013
卷号: 87, 期号:1, 页码:14009
关键词: FORM-FACTOR RELATIONS ;  SUM-RULES ;  HEAVY ;  TRANSITIONS
学科分类: Physics
通讯作者: Qiao, CF (reprint author), Univ Chinese Acad Sci, Dept Phys, YuQuan Rd 19A, Beijing 100049, Peoples R China.
部门归属: [Qiao, Cong-Feng; Zhu, Rui-Lin] Univ Chinese Acad Sci, Dept Phys, Beijing 100049, Peoples R China; [Qiao, Cong-Feng] Chinese Acad Sci, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China
英文摘要: We study the semileptonic differential decay rates of the B-c meson to S-wave charmonia, eta(c), and J/Psi at next-to-leading order accuracy in the framework of nonrelativistic QCD. In the heavy quark limit, m(b) -> infinity, we obtain analytically the asymptotic expression for the ratio of the next-to-leading order form factor to the leading-order form factor. Numerical results show that the convergence of the ratio is perfect. At the maximum recoil region, we analyze the differential decay rates in detail with various input parameters and polarizations of J/Psi, which can now be checked in the LHCb experiment. Phenomenologically, the form factors are extrapolated to the minimal recoil region, and then the B-c-to-charmonium semileptonic decay rates are estimated. DOI: 10.1103/PhysRevD.87.014009
资助者: National Natural Science Foundation of China (NSFC) [10935012, 10821063, 11175249]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000313333800004
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15441
Appears in Collections:理论物理所2013年知识产出 _期刊论文

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Recommended Citation:
Qiao, CF,Zhu, RL. Estimation of semileptonic decays of B-c meson to S-wave charmonia with nonrelativistic QCD[J]. PHYSICAL REVIEW D,2013,87(1):14009.
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