Some of semileptonic and nonleptonic decays of B-c meson in a Bethe-Salpeter relativistic quark model

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	Some of semileptonic and nonleptonic decays of B-c meson in a Bethe-Salpeter relativistic quark model
	Chang, CH; Fu, HF; Wang, GL; Zhang, JM
刊名	SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
	2015
卷号	58 期号:7 页码:71001
关键词	B-c meson Bethe-Salpeter quark model decay
通讯作者	Chang, CH (reprint author), China Ctr Adv Sci & Technol, World Lab, Beijing 100190, Peoples R China.
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.
学科主题	Physics
类目[WOS]	Physics, Multidisciplinary
关键词[WOS]	WEAK DECAYS ; BOUND-STATES ; EQUATION
收录类别	SCI
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/20947]
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	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.
APA	Chang, CH,Fu, HF,Wang, GL,&Zhang, JM.(2015).Some of semileptonic and nonleptonic decays of B-c meson in a Bethe-Salpeter relativistic quark model.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,58(7),71001.
MLA	Chang, CH,et al."Some of semileptonic and nonleptonic decays of B-c meson in a Bethe-Salpeter relativistic quark model".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 58.7(2015):71001.