Dark matter interpretations of ATLAS searches for the electroweak production of supersymmetric particles in root s=8 TeV proton-proton collisions
ATLAS Collaboration
刊名JOURNAL OF HIGH ENERGY PHYSICS
2016
卷号2016期号:9页码:175
关键词Hadron-Hadron scattering (experiments)
DOI10.1007/jhep09(2016)175
文章类型Article
英文摘要A selection of searches by the ATLAS experiment at the LHC for the electroweak production of SUSY particles are used to study their impact on the constraints on dark matter candidates. The searches use 20 fb(-1) of proton-proton collision data at root s = 8 TeV. A likelihood-driven scan of a five-dimensional effective model focusing on the gaugino-higgsino and Higgs sector of the phenomenological minimal supersymmetric Standard Model is performed. This scan uses data from direct dark matter detection experiments, the relic dark matter density and precision flavour physics results. Further constraints from the ATLAS Higgs mass measurement and SUSY searches at LEP are also applied. A subset of models selected from this scan are used to assess the impact of the selected ATLAS searches in this five-dimensional parameter space. These ATLAS searches substantially impact those models for which the mass m((chi) over tilde (0)(1)) of the lightest neutralino is less than 65 GeV, excluding 86% of such models. The searches have limited impact on models with larger m((chi) over tilde (0)(1)) due to either heavy electroweakinos or compressed mass spectra where the mass splittings between the produced particles and the lightest supersymmetric particle is small.
关键词[WOS]DYNAMICAL SYMMETRY-BREAKING ; HADRON COLLIDERS ; MEASURING MASSES ; MONTE-CARLO ; EXTENSION ; MODEL ; VIOLATION ; COSMOLOGY ; EFFICIENT ; PROGRAM
语种英语
WOS记录号WOS:000391734800001
引用统计
被引频次:1[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/311005/260935
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. Dark matter interpretations of ATLAS searches for the electroweak production of supersymmetric particles in root s=8 TeV proton-proton collisions[J]. JOURNAL OF HIGH ENERGY PHYSICS,2016,2016(9):175.
APA ATLAS Collaboration.(2016).Dark matter interpretations of ATLAS searches for the electroweak production of supersymmetric particles in root s=8 TeV proton-proton collisions.JOURNAL OF HIGH ENERGY PHYSICS,2016(9),175.
MLA ATLAS Collaboration."Dark matter interpretations of ATLAS searches for the electroweak production of supersymmetric particles in root s=8 TeV proton-proton collisions".JOURNAL OF HIGH ENERGY PHYSICS 2016.9(2016):175.
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