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题名: Some of semileptonic and nonleptonic decays of B-c meson in a Bethe-Salpeter relativistic quark model
作者: Chang, CH;  Fu, HF;  Wang, GL;  Zhang, JM
刊名: SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
出版日期: 2015
卷号: 58, 期号:7, 页码:71001
关键词: B-c meson ;  Bethe-Salpeter quark model ;  decay
学科分类: Physics
DOI: http://dx.doi.org/10.1007/s11433-015-5671-x
通讯作者: Chang, CH (reprint author), China Ctr Adv Sci & Technol, World Lab, Beijing 100190, Peoples R China.
文章类型: Article
英文摘要: The semileptonic decays B-c(+) P(V) + l(+) + (v) over bare and the nonleptonic decays B-c(+) -> P(V) + L, where P(V) denotes a pseudoscalar (vector) charmonium or (bs)-meson, and L denotes a light meson, are studied in the framework of improved instantaneous Bethe-Salpeter (BS) equation and the.Mandelstam formula. The numerical results (width and branching ratio of the decays) are presented in tables, and in order to compare conveniently, those obtained by other approaches are also put in the relevant tables. Based on the fact that the ratio BR(B-c(+) -> psi(2S)pi(+))/BR(B-c(+) -> J/psi pi(+)) = 0.24(-0.040)(+0.023) estimated here is in good agreement with the observation by LHCb BR(B-c(+) -> psi(2S)pi(+))/BR(B-c(+) -> J/psi pi(+)) = 0.250 +/- 0.068(stat) +/- 0.014(syst) +/- 0.006(B), one may conclude that with respect to the decays the present framework works quite well.
类目[WOS]: Physics, Multidisciplinary
关键词[WOS]: WEAK DECAYS ;  BOUND-STATES ;  EQUATION
收录类别: SCI
项目资助者: National Natural Science Foundation of China [11175051, 11275243, 11147001] ;  Fundamental Research Funds for the Central Universities ;  Program for Innovation Research of Science in Harbin Institute of Technology
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/20947
Appears in Collections:理论物理所2015年知识产出_期刊论文

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Recommended Citation:
Chang, CH,Fu, HF,Wang, GL,et al. Some of semileptonic and nonleptonic decays of B-c meson in a Bethe-Salpeter relativistic quark model[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2015,58(7):71001.
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