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题名: Decays of the meson B-c to a P-wave charmonium state chi(c) or h(c)
作者: Chang, CH ;  Chen, YQ ;  Wang, GL ;  Zong, HS
刊名: PHYSICAL REVIEW D
出版日期: 2002
卷号: 65, 期号:1, 页码:-
关键词: QUARK SPIN SYMMETRY ;  PHENOMENOLOGICAL ANALYSIS ;  LEPTONIC DECAYS ;  HEAVY MESONS ;  MODEL ;  LIFETIMES
学科分类: Physics
通讯作者: Chang, CH , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.
部门归属: CCAST, World Lab, Beijing 100080, Peoples R China; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China; Fujian Normal Univ, Dept Phys, Fuzhou 350007, Peoples R China; Nanjing Univ, Dept Phys, Nanjing 210008, Peoples R China
英文摘要: The decays of the meson B-c to a P-wave charmonium state chi(c) or h(c) (here chi(c) and h(c) denote (c (c) over bar[P-3(J)]) and (c (c) over bar[P-1(1)]), respectively); the semileptonic ones B-c --> chi(c)(h(c))+l+ nu(l), and the two-body nonleptonic ones B-c -->chi(c) (h(c)) + h (h indicates a meson) are computed. To properly deal with the recoil effects, which may be relativistic in the decays, in the computation the framework of a heavy quark model, which is based on the Bethe-Salpeter equation and QCD inspired potential, is adopted. We find that all the decay rates are quite sizable and under reasonable approximations, all of the form factors occurring in the decays can be formulated precisely by means of proper kinematics factors and two independent overlapping integrations of the wave functions. As a result, the decays will be accessible at the CERN Large Hadron Collider and in run II at the Fermilab Tevatron in the foreseeable future. In particular, the cascade decays, i.e., B-c --> chi(c)[P-3(1,2)]+l+nu(1)(B-c -->chi(c)[P-3(1,2)]+h) and chi(c)[P-3(1,2)] --> J/psi+gamma, being followed accordingly, may affect the observations of the B-c meson through the decays B-c-->J/psi+l + nu(l) (B-c-->J/psi+h) substantially, and the decays B-c-->h(c)+... may be used as a fresh window experimentally to observe the h(c) state potentially.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000173125000032
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13622
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Chang, CH,Chen, YQ,Wang, GL,et al. Decays of the meson B-c to a P-wave charmonium state chi(c) or h(c)[J]. PHYSICAL REVIEW D,2002,65(1):-.
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