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Measurement of the inclusive semileptonic branching fraction B(B-s(0) -> X(-)l(+)v(l)) at Belle
Belle Collaboration
2013
发表期刊PHYSICAL REVIEW D
卷号87期号:7
通讯作者Oswald, C (reprint author), Univ Basque Country UPV EHU, Bilbao 48080, Spain.
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)]%.
关键词DECAYS MODEL
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.87.072008
收录类别SCI
语种英语
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000318940900002
引用统计
被引频次:9[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/311005/213530
专题实验物理中心
作者单位中国科学院高能物理研究所
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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).
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