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Decays of the meson B-c to a P-wave charmonium state chi(c) or h(c)
Chang, CH; Chen, YQ; Wang, GL; Zong, HS; Chang, CH , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.
2002
发表期刊PHYSICAL REVIEW D
ISSN0556-2821
卷号65期号:1页码:-
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.
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
关键词Quark Spin Symmetry Phenomenological Analysis Leptonic Decays Heavy Mesons Model Lifetimes
学科领域Physics
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收录类别SCI
WOS记录号WOS:000173125000032
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被引频次:19[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13622
专题理论物理所SCI论文
通讯作者Chang, CH , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.
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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):-.
APA Chang, CH,Chen, YQ,Wang, GL,Zong, HS,&Chang, CH , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China..(2002).Decays of the meson B-c to a P-wave charmonium state chi(c) or h(c).PHYSICAL REVIEW D,65(1),-.
MLA Chang, CH,et al."Decays of the meson B-c to a P-wave charmonium state chi(c) or h(c)".PHYSICAL REVIEW D 65.1(2002):-.
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