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Search for anomalous production of prompt like-sign lepton pairs at root s=7 TeV with the ATLAS detector
Atlas Collaboration
2012
发表期刊JOURNAL OF HIGH ENERGY PHYSICS
期号12
通讯作者Aad, G (reprint author), Univ Freiburg, Fak Math & Phys, Hugstetter Str 55, D-79106 Freiburg, Germany.
摘要An inclusive search for anomalous production of two prompt, isolated leptons with the same electric charge is presented. The search is performed in a data sample corresponding to 4.7 fb(-1) of integrated luminosity collected in 2011 at root s = 7TeV with the ATLAS detector at the LHC. Pairs of leptons (e(+/-)e(+/-), e(+/-)mu(+/-), and mu(+/-)mu(+/-)) with large transverse momentum are selected, and the dilepton invariant mass distribution is examined for any deviation from the Standard Model expectation. No excess is found, and upper limits on the production cross section of like-sign lepton pairs from physics processes beyond the Standard Model are placed as a function of the dilepton invariant mass within a fiducial region close to the experimental selection criteria. The 95% confidence level upper limits on the cross section of anomalous e(+/-)e(+/-), e(+/-)mu(+/-), or mu(+/-)mu(+/-) production range between 1.7 fb and 64 fb depending on the dilepton mass and flavour combination.
关键词CHARGED HIGGS BOSONS NUMBER-VIOLATING PROCESSES MAJORANA NEUTRINO MASSES LEFT-RIGHT SYMMETRY PP COLLISIONS PARTON DISTRIBUTIONS LHC MODEL PHYSICS
学科领域Physics
DOI10.1007/JHEP12(2012)007
收录类别SCI
语种英语
WOS类目Physics, Particles & Fields
WOS记录号WOS:000313123800007
引用统计
被引频次:5[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/311005/213420
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 anomalous production of prompt like-sign lepton pairs at root s=7 TeV with the ATLAS detector[J]. JOURNAL OF HIGH ENERGY PHYSICS,2012(12).
APA Atlas Collaboration.(2012).Search for anomalous production of prompt like-sign lepton pairs at root s=7 TeV with the ATLAS detector.JOURNAL OF HIGH ENERGY PHYSICS(12).
MLA Atlas Collaboration."Search for anomalous production of prompt like-sign lepton pairs at root s=7 TeV with the ATLAS detector".JOURNAL OF HIGH ENERGY PHYSICS .12(2012).
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