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Production of orbitally excited charm mesons in semileptonic B decays
ALEPH Collaboration
1997
发表期刊ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS
卷号73期号:4页码:#REF!
通讯作者Buskulic, D (reprint author), PHYS PARTICULES LAB, IN2P3 CNRS, F-74019 ANNECY LE VIEUX, FRANCE.
摘要A sample of 3.6 million hadronic Z decays recorded between 1991 and 1995 with the ALEPH detector at LEP is used to investigate semileptonic decays of B mesons into final states involving orbitally excited charm mesons. Topological vertex criteria are used to search for decays involving narrow D** states as well as wide D** resonances and non-resonant D(*)pi final states. The sum of the branching ratios for these processes is measured to be Br((B) over bar --> D pi l(-)(v) over bar) + Br((B) over bar --> D*pi l(-)(v) over bar) = (2.26 +/-t 0.29(stat) +/- 0.33(syst))%, which accounts for a significant fraction of the deficit between inclusive measurements and the sum of exclusive semileptonic B decay modes.
文章类型Article
学科领域Physics
DOI10.1007/s002880050351
收录类别SCI
WOS类目Physics, Particles & Fields
WOS记录号WOS:A1997WQ46400004
引用统计
被引频次:71[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/311005/227739
专题实验物理中心
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ALEPH Collaboration. Production of orbitally excited charm mesons in semileptonic B decays[J]. ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS,1997,73(4):#REF!.
APA ALEPH Collaboration.(1997).Production of orbitally excited charm mesons in semileptonic B decays.ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS,73(4),#REF!.
MLA ALEPH Collaboration."Production of orbitally excited charm mesons in semileptonic B decays".ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS 73.4(1997):#REF!.
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