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Exclusive B-s decays to the charmed mesons D-s(+)(1968,2317) in the standard model
Li RH(李润辉); Lv CD(吕才典); Wang YM(王玉明); Li, RH; Lu, CD; Wang, YM
2009
发表期刊PHYSICAL REVIEW D
卷号80期号:1页码:14005
通讯作者[Li, Run-Hui ; Lue, Cai-Dian ; Wang, Yu-Ming] Ctr Sci Facil, Inst High Energy Phys & Theoret Phys, Beijing 100049, Peoples R China ; [Li, Run-Hui] Shandong Univ, Sch Phys, Jinan 250100, Peoples R China
文章类型Article
摘要The transition form factors of B-s(0)-> D-s(+)(2317) and B-s(0)-> D-s(+)(1968) at large recoil region are investigated in the light cone sum rules approach, where the heavy quark effective theory is adopted to describe the form factors at small recoil region. With the form factors obtained, we carry out a detailed analysis on both the semileptonic decays B-s(0)-> D-s(+)(1968,2317)l nu(l) and nonleptonic decays B-s -> D-s(+)(1968,2317)M with M being a light meson or a charmed meson under the factorization approach. Our results show that the branching fraction of eB(s)(0)-> D-s(+)(2317)mu nu(mu) is around 2.3x10(-3), which should be detectable with ease at the Tevatron and CERN LHC. It is also found that the branching fractions of B-s(0)-> D-s(+)(1968)l nu(l) are almost 1 order larger than those of the corresponding B-s(0)-> D-s(+)(2317)l nu(l) decays. The consistency of predictions for B-s -> D-s(+)(1968,2317)L (L denotes a light meson) in the factorization assumption and k(T) factorization also supports the success of color transparency mechanism in the color allowed decay modes. Most two-charmed meson decays of B-s mesons possess quite large branching ratios that are accessible in the experiments. These channels are of great importance to explore the hadronic structure of charmed mesons as well as the nonperturbative dynamics of QCD.
学科领域Astronomy & Astrophysics; Physics
研究领域[WOS]Astronomy & Astrophysics ; Physics ; Astronomy & Astrophysics ; Physics
DOI10.1103/PhysRevD.80.014005
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语种英语
研究领域[WOS]Astronomy & Astrophysics ; Physics ; Astronomy & Astrophysics ; Physics
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000268618600022
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被引频次:26[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240415
专题理论物理室
作者单位中国科学院高能物理研究所
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Li RH,Lv CD,Wang YM,et al. Exclusive B-s decays to the charmed mesons D-s(+)(1968,2317) in the standard model[J]. PHYSICAL REVIEW D,2009,80(1):14005.
APA 李润辉,吕才典,王玉明,Li, RH,Lu, CD,&Wang, YM.(2009).Exclusive B-s decays to the charmed mesons D-s(+)(1968,2317) in the standard model.PHYSICAL REVIEW D,80(1),14005.
MLA 李润辉,et al."Exclusive B-s decays to the charmed mesons D-s(+)(1968,2317) in the standard model".PHYSICAL REVIEW D 80.1(2009):14005.
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