Measurement of the inclusive semileptonic branching fraction B(B-s(0) -> X(-)l(+)v(l)) at Belle

	Measurement of the inclusive semileptonic branching fraction B(B-s(0) -> X(-)l(+)v(l)) at Belle
	Belle Collaboration
刊名	PHYSICAL REVIEW D
	2013
卷号	87 期号:7
关键词	DECAYS MODEL
通讯作者	Oswald, C (reprint author), Univ Basque Country UPV EHU, Bilbao 48080, Spain.
英文摘要	We report a measurement of the inclusive semileptonic B-s(0) branching fraction in a 121 fb(-1) data sample collected near the Y(5S) resonance with the Belle detector at the KEKB asymmetric energy e(+)e(-) collider. Events containing B-s(0())(B) over bar (0())(s) pairs are selected by reconstructing a tag side D-s(+) and identifying a signal side lepton l(+) (l = e, mu) that is required to have the same- sign charge to ensure that both originate from different B-s(0) mesons. The B-s(0) -> X(-)l(+)v(l) branching fraction is extracted from the ratio of the measured yields of D-s(+) mesons and D(s)(+)l(+) pairs and the known production and branching fractions. The inclusive semileptonic branching fraction is measured to be [10.6 +/- 0.5(stat) +/- 0.7(syst)]%.
学科主题	Astronomy & Astrophysics; Physics
类目[WOS]	Astronomy & Astrophysics ; Physics, Particles & Fields
收录类别	SCI
语种	英语
WOS记录号	WOS:000318940900002
公开日期	2016-02-26
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/213530]
专题	高能物理研究所_实验物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Belle Collaboration. Measurement of the inclusive semileptonic branching fraction B(B-s(0) -> X(-)l(+)v(l)) at Belle[J]. PHYSICAL REVIEW D,2013,87(7).
APA	Belle Collaboration.(2013).Measurement of the inclusive semileptonic branching fraction B(B-s(0) -> X(-)l(+)v(l)) at Belle.PHYSICAL REVIEW D,87(7).
MLA	Belle Collaboration."Measurement of the inclusive semileptonic branching fraction B(B-s(0) -> X(-)l(+)v(l)) at Belle".PHYSICAL REVIEW D 87.7(2013).