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MEASUREMENT OF THE (B)OVER-BAR-0 AND B-MESON LIFETIMES
ALEPH Collaboration
1993
发表期刊PHYSICS LETTERS B
卷号307期号:1-2页码:#REF!
通讯作者BUSKULIC, D (reprint author), CNRS, IN2P3, PHYS PARTICULES LAB, F-74019 ANNECY LE VIEUX, FRANCE.
摘要The lifetimes of the B0BAR and B- mesons have been measured with the ALEPH detector at LEP. Semileptonic decays of B0BAR and B- mesons were partially reconstructed by identifying events containing a lepton with an associated D*+ or D0 meson. The proper time of the B meson was estimated from the measured decay length and the momentum and mass of the D-lepton system. A fit to the proper time of 77 D*+l- and 77 D0l- candidates, combined with a constraint on the lifetime ratio (tau-/tau0) arising from the relative rates of observed D*+l- and D0l- events, yielded the following lifetimes: tau0 = 1.52(+0.20/-0.18) (stat. )+0.07/-0.13 (syst.) ps, tau = 1.47(+0.22/-0.19) (stat.)+0.15/-0.14 (syst.) ps, tau-/tau0 = 0.96(+0.19/-0.15) (stat. )+0.18/-0.12(syst.).
文章类型Article
学科领域Physics
DOI10.1016/0370-2693(93)90211-Y
收录类别SCI
WOS类目Physics, Multidisciplinary
WOS记录号WOS:A1993LH16600029
引用统计
被引频次:34[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/311005/226849
专题实验物理中心
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GB/T 7714
ALEPH Collaboration. MEASUREMENT OF THE (B)OVER-BAR-0 AND B-MESON LIFETIMES[J]. PHYSICS LETTERS B,1993,307(1-2):#REF!.
APA ALEPH Collaboration.(1993).MEASUREMENT OF THE (B)OVER-BAR-0 AND B-MESON LIFETIMES.PHYSICS LETTERS B,307(1-2),#REF!.
MLA ALEPH Collaboration."MEASUREMENT OF THE (B)OVER-BAR-0 AND B-MESON LIFETIMES".PHYSICS LETTERS B 307.1-2(1993):#REF!.
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