Search for supersymmetry in events with four or more leptons in root s=8 TeV pp collisions with the ATLAS detector
ATLAS collaboration
刊名PHYSICAL REVIEW D
2014
卷号90期号:5
关键词PARITY VIOLATING DECAYS MISSING TRANSVERSE-MOMENTUM E(+)E(-) COLLISIONS HADRON COLLIDERS SUPERGAUGE TRANSFORMATIONS PAIR PRODUCTION PARTICLES ENERGY MODEL BREAKING
学科分类Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.90.052001
通讯作者Aad, G (reprint author), Aix Marseille Univ, CPPM, Marseille, France.
英文摘要Results from a search for supersymmetry in events with four or more leptons including electrons, muons and taus are presented. The analysis uses a data sample corresponding to 20.3 fb(-1) of proton proton collisions delivered by the Large Hadron Collider at root s = 8 TeV and recorded by the ATLAS detector. Signal regions are designed to target supersymmetric scenarios that can be either enriched in or depleted of events involving the production of a Z boson. No significant deviations are observed in data from standard model predictions and results are used to set upper limits on the event yields from processes beyond the standard model. Exclusion limits at the 95% confidence level on the masses of relevant supersymmetric particles are obtained. In R-parity-violating simplified models with decays of the lightest supersymmetric particle to electrons and muons, limits of 1350 and 750 GeV are placed on gluino and chargino masses, respectively. In R-parity-conserving simplified models with heavy neutralinos decaying to a massless lightest supersymmetric particle, heavy neutralino masses up to 620 GeV are excluded. Limits are also placed on other supersymmetric scenarios.
类目[WOS]Astronomy & Astrophysics ; Physics, Particles & Fields
收录类别SCI
语种英语
WOS记录号WOS:000341264900001
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被引频次:14[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/311005/213766
专题中国科学院高能物理研究所_实验物理中心_期刊论文
作者单位中国科学院高能物理研究所
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ATLAS collaboration. Search for supersymmetry in events with four or more leptons in root s=8 TeV pp collisions with the ATLAS detector[J]. PHYSICAL REVIEW D,2014,90(5).
APA ATLAS collaboration.(2014).Search for supersymmetry in events with four or more leptons in root s=8 TeV pp collisions with the ATLAS detector.PHYSICAL REVIEW D,90(5).
MLA ATLAS collaboration."Search for supersymmetry in events with four or more leptons in root s=8 TeV pp collisions with the ATLAS detector".PHYSICAL REVIEW D 90.5(2014).
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