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Search for light scalar top-quark pair production in final states with two leptons with the ATLAS detector in root s=7 TeV proton-proton collisions
ATLAS Collaboration
2012
发表期刊EUROPEAN PHYSICAL JOURNAL C
卷号72期号:11
通讯作者Aad, G (reprint author), Univ Freiburg, Fak Math & Phys, Hugstetter Str 55, D-79106 Freiburg, Germany.
摘要A search is presented for the pair production of light scalar top quarks in root s = 7 TeV proton-proton collisions recorded with the ATLAS detector at the Large Hadron Collider. This analysis uses the full data sample collected during 2011 running that corresponds to a total integrated luminosity of 4.7 fb(-1). Light scalar top quarks are searched for in events with two opposite-sign leptons (e, mu), large missing transverse momentum and at least one jet in the final state. No excess over Standard Model expectations is found, and the results are interpreted under the assumption that the light scalar top decays to a b-quark in addition to an on-shell chargino whose decay occurs through a virtual W boson. If the chargino mass is 106 GeV, light scalar top-quark masses up to 130 GeV are excluded for neutralino masses below 70 GeV.
关键词SUPERGAUGE TRANSFORMATIONS SUPERSYMMETRY MODEL CURRENTS PIONS WEAK
学科领域Physics
DOI10.1140/epjc/s10052-012-2237-1
收录类别SCI
语种英语
WOS类目Physics, Particles & Fields
WOS记录号WOS:000312074800038
引用统计
被引频次:15[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/311005/213397
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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ATLAS Collaboration. Search for light scalar top-quark pair production in final states with two leptons with the ATLAS detector in root s=7 TeV proton-proton collisions[J]. EUROPEAN PHYSICAL JOURNAL C,2012,72(11).
APA ATLAS Collaboration.(2012).Search for light scalar top-quark pair production in final states with two leptons with the ATLAS detector in root s=7 TeV proton-proton collisions.EUROPEAN PHYSICAL JOURNAL C,72(11).
MLA ATLAS Collaboration."Search for light scalar top-quark pair production in final states with two leptons with the ATLAS detector in root s=7 TeV proton-proton collisions".EUROPEAN PHYSICAL JOURNAL C 72.11(2012).
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