Determinations of vertical bar V-ub vertical bar from inclusive semileptonic B decays with reduced model dependence

doi:10.1103/PhysRevLett.96.221801

IHEP OpenIR > 实验物理中心

	Determinations of vertical bar V-ub vertical bar from inclusive semileptonic B decays with reduced model dependence
	BaBar Collaboration
	2006
发表期刊	PHYSICAL REVIEW LETTERS (IF:8.462[JCR-2016],7.805[5-Year])
卷号	96 期号:22
通讯作者	Aubert, B (reprint author), Phys Particules Lab, F-74941 Annecy Le Vieux, France.
摘要	We report two novel determinations of vertical bar V-ub vertical bar with reduced model dependence, based on measurements of the mass distribution of the hadronic system in semileptonic B decays. Events are selected by fully reconstructing the decay of one B meson and identifying a charged lepton from the decay of the other B meson from Y(4S) -> B (B) over bar events. In one approach, we combine the inclusive (B) over bar -> X(u)l (v) over bar rate, integrated up to a maximum hadronic mass m(X) < 1.67 GeV/c(2), with a measurement of the inclusive B -> X-s gamma photon energy spectrum. We obtain vertical bar V-ub vertical bar = (4.43 +/- 0.38(stat) +/- 0.25(syst) +/- 0.29(theo)) x 10(-3). In another approach we measure the total (B) over bar -> X(u)l (v) over bar rate over the full phase space and find vertical bar V-ub vertical bar = 3.84 +/- 0.70(stat) +/- 0.30(syst) +/- 0.10(theo)) x 10(-3).
关键词	MESON DECAYS HIGH-ENERGY SPECTRUM PHYSICS
学科领域	Physics
DOI	10.1103/PhysRevLett.96.221801
收录类别	SCI ; ADS ; INSPIREHEP
语种	英语
WOS类目	Physics, Multidisciplinary
WOS记录号	WOS:000238161400013
ADS Bibcode	2006PhRvL..96v1801A
ADS URL	https://ui.adsabs.harvard.edu/abs/2006PhRvL..96v1801A
ADS引文	https://ui.adsabs.harvard.edu/abs/2006PhRvL..96v1801A/citations
INSPIRE ID	709463
INSPIRE URL	https://inspirehep.net/literature/709463
引用统计	正在获取... 被引频次：36 [INSPIRE] 被引频次：29 [ADS]
文献类型	期刊论文
条目标识符	https://ir.ihep.ac.cn/handle/311005/212666
专题	实验物理中心
作者单位	中国科学院高能物理研究所
第一作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	BaBar Collaboration. Determinations of vertical bar V-ub vertical bar from inclusive semileptonic B decays with reduced model dependence[J]. PHYSICAL REVIEW LETTERS,2006,96(22).
APA	BaBar Collaboration.(2006).Determinations of vertical bar V-ub vertical bar from inclusive semileptonic B decays with reduced model dependence.PHYSICAL REVIEW LETTERS,96(22).
MLA	BaBar Collaboration."Determinations of vertical bar V-ub vertical bar from inclusive semileptonic B decays with reduced model dependence".PHYSICAL REVIEW LETTERS 96.22(2006).