Searches for scalar top and scalar bottom quarks at LEP2
ALEPH Collaboration
刊名PHYSICS LETTERS B
1997
卷号413期号:3-4页码:#REF!
学科分类Physics
DOI10.1016/S0370-2693(97)01178-7
通讯作者Barate, R (reprint author), CNRS, Phys Particules Lab, IN2P3, F-74019 Annecy Le Vieux, France.
文章类型Article
英文摘要Searches for scalar top and bottom quarks have been performed with data collected by the ALEPH detector at LEP. The data sample consists of 21.7 pb(-1) taken at root s = 161, 170, and 172 GeV and 5.7 pb(-1) taken at root s = 130 and 136 GeV. No evidence for scalar top quarks or scalar bottom quarks was found in the channels (t) over tilde --> c chi, (t) over tilde --> bl<(nu)over tilde>, and (b) over tilde --> b chi. For the channel (t) over tilde --> c chi a limit of 67 GeV/c(2) has been set on the scalar top quark mass, independent of the mixing angle between the supersymmetric partners of the left and right-handed states of the top quark. This limit assumes a mass difference between the (t) over tilde and the chi of at least 10 GeV/c(2). For the channel (t) over tilde --> bl<(nu)over tilde> the mixing-angle independent scalar top limit is 70 GeV/c(2), assuming a mass difference between the (t) over tilde and the <(nu)over tilde> of at least 10 GeV/c(2). For the channel (b) over tilde --> b chi, a limit of 73 GeV/c(2) has been set on the mass of the supersymmetric partner of the left-handed state of the bottom quark. This limit is valid if the mass difference between the (b) over tilde and the chi is at least 10 GeV/c(2). (C) 1997 Elsevier Science B.V.
类目[WOS]Physics, Multidisciplinary
收录类别SCI
WOS记录号WOS:000071086700029
引用统计
被引频次:20[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/311005/227643
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. Searches for scalar top and scalar bottom quarks at LEP2[J]. PHYSICS LETTERS B,1997,413(3-4):#REF!.
APA ALEPH Collaboration.(1997).Searches for scalar top and scalar bottom quarks at LEP2.PHYSICS LETTERS B,413(3-4),#REF!.
MLA ALEPH Collaboration."Searches for scalar top and scalar bottom quarks at LEP2".PHYSICS LETTERS B 413.3-4(1997):#REF!.
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