Direct measurements of the branching fractions for inclusive K-+/- and inclusive semileptonic decays of D+ and D-0 mesons

	Direct measurements of the branching fractions for inclusive K-+/- and inclusive semileptonic decays of D+ and D-0 mesons
	BES Collaboration
刊名	PHYSICS LETTERS B
	2007
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.
英文摘要	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.
学科主题	Physics
类目[WOS]	Physics, Multidisciplinary
收录类别	SCI
WOS记录号	WOS:000251895400001
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/225435]
专题	高能物理研究所_实验物理中心
推荐引用方式 GB/T 7714	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.