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Searches for supersymmetry with the ATLAS detector using final states with two leptons and missing transverse momentum in root s=7 TeV proton-proton collisions
ATLAS Collaboration
2012
发表期刊PHYSICS LETTERS B
卷号709期号:3页码:137-157
通讯作者Arik, E (reprint author), Bogazici Univ, Dept Phys, Istanbul, Turkey.
摘要Results of three searches are presented for the production of supersymmetric particles decaying into final states with missing transverse momentum and exactly two isolated leptons, e or mu. The analysis uses a data sample collected during the first half of 2011 that corresponds to a total integrated luminosity of 1 fb(-1) of root s = 7 TeV proton-proton collisions recorded with the ATLAS detector at the Large Hadron Collider. Opposite-sign and same-sign dilepton events are separately studied, with no deviations from the Standard Model expectation observed. Additionally, in opposite-sign events, a search is made for an excess of same-flavour over different-flavour lepton pairs. Effective production cross sections in excess of 9.9 fb for opposite-sign events containing supersymmetric particles with missing transverse momentum greater than 250 GeV are excluded at 95% CL For same-sign events containing supersymmetric particles with missing transverse momentum greater than 100 GeV, effective production cross sections in excess of 14.8 fb are excluded at 95% CL The latter limit is interpreted in a simplified electroweak gaugino production model excluding chargino masses up to 200 GeV, under the assumption that slepton decay is dominant. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved.
关键词SUPERGAUGE TRANSFORMATIONS SCALAR LEPTONS MODEL NEUTRALINOS GENERATORS CHARGINOS PIONS
学科领域Physics
DOI10.1016/j.physletb.2012.01.076
收录类别SCI
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000301758800007
引用统计
被引频次:60[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/311005/213198
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. Searches for supersymmetry with the ATLAS detector using final states with two leptons and missing transverse momentum in root s=7 TeV proton-proton collisions[J]. PHYSICS LETTERS B,2012,709(3):137-157.
APA ATLAS Collaboration.(2012).Searches for supersymmetry with the ATLAS detector using final states with two leptons and missing transverse momentum in root s=7 TeV proton-proton collisions.PHYSICS LETTERS B,709(3),137-157.
MLA ATLAS Collaboration."Searches for supersymmetry with the ATLAS detector using final states with two leptons and missing transverse momentum in root s=7 TeV proton-proton collisions".PHYSICS LETTERS B 709.3(2012):137-157.
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