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Direct measurements of the branching fractions for inclusive K-+/- and inclusive semileptonic decays of D+ and D-0 mesons
BES Collaboration
2007
发表期刊PHYSICS LETTERS B
卷号658期号:1-3页码:1-6
通讯作者Liu, J (reprint author), Inst High Energy Phys, Beijing 100049, Peoples R China.
摘要With singly-tagged (D) over bar samples selected from the data collected at and around 3.773 GeV with the BESII detector at the BEPC collider, we have measured the branching fractions for the inclusive K-+/- decays of D+ and D-0 mesons, which are BF(D+ -> K- X) = (24.7 +/- 1.3 +/- 1.2)%, BF(D+ -> K+ X) = (6.1 +/- 0.9 +/- 0.4)%, BF(D-0 -> K- X) = (57.8 +/- 1.6 +/- 3.2)% and BF(D-0 -> K+ X) = (3.5 +/- 0.7 +/- 0.3)%, respectively. We have also measured the branching fractions for the inclusive semileptonic decays of D+ and D-0 mesons to be BF(D+ -> e(+) X) = (15.2 +/- 0.9 +/- 0.8)%, and BF(D-0 -> e(+) X) = (6.3 +/- 0.7 +/- 0.4)%. These yield the ratio of their partial widths to be Gamma(D+ -> e(+) X)/ Gamma(D-0 -> e(+) X) = 0.95 +/- 0.12 +/- 0.07. (c) 2007 Elsevier B.V. All rights reserved.
文章类型Article
学科领域Physics
DOI10.1016/j.physletb.2007.10.052
收录类别SCI
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000251895400001
引用统计
被引频次:4[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/311005/225435
专题实验物理中心
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BES Collaboration. Direct measurements of the branching fractions for inclusive K-+/- and inclusive semileptonic decays of D+ and D-0 mesons[J]. PHYSICS LETTERS B,2007,658(1-3):1-6.
APA BES Collaboration.(2007).Direct measurements of the branching fractions for inclusive K-+/- and inclusive semileptonic decays of D+ and D-0 mesons.PHYSICS LETTERS B,658(1-3),1-6.
MLA BES Collaboration."Direct measurements of the branching fractions for inclusive K-+/- and inclusive semileptonic decays of D+ and D-0 mesons".PHYSICS LETTERS B 658.1-3(2007):1-6.
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