Improved measurement of the B-d(0)-(B)over-bar(d)(0) oscillation frequency
ALEPH Collaboration
刊名ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS
1997
卷号75期号:3页码:#REF!
学科分类Physics
DOI10.1007/s002880050483
通讯作者Buskulic, D (reprint author), CNRS, IN2P3, PHYS PARTICULES LAB, F-74019 ANNECY LE VIEUX, FRANCE.
文章类型Article
英文摘要The time dependence of B-d(-)(B) over bar(d)(-0) oscillations is measured by the ALEPH experiment at LEP, using three techniques; two of which are updates of previous measurements. In all cases the charge of the decaying b quark and its decay time are measured in one hemisphere of the event; the quark charge at production is tagged mainly using the opposite hemisphere. The first method uses the charge correlation between a D*(-) and a lepton in the opposite hemisphere; if no lepton is present, the produced quark charge is determined from the hemisphere charges. In the second method, the decay time is measured using a lepton in one hemisphere and the initial state is inferred from the opposite-hemisphere jet charge. The third method uses a lepton in each hemisphere. The data used were collected from 1991 to 1994. The combined result is Delta m(d)=0.446+/-0.032 ps(-1).
类目[WOS]Physics, Particles & Fields
收录类别SCI
WOS记录号WOS:A1997XP36500002
引用统计
被引频次:25[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/311005/227620
专题中国科学院高能物理研究所_实验物理中心_期刊论文
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ALEPH Collaboration. Improved measurement of the B-d(0)-(B)over-bar(d)(0) oscillation frequency[J]. ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS,1997,75(3):#REF!.
APA ALEPH Collaboration.(1997).Improved measurement of the B-d(0)-(B)over-bar(d)(0) oscillation frequency.ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS,75(3),#REF!.
MLA ALEPH Collaboration."Improved measurement of the B-d(0)-(B)over-bar(d)(0) oscillation frequency".ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS 75.3(1997):#REF!.
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