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Search for dark matter particles in proton-proton collisions at root 8 = TeV using the razor variables
CMS Collaboration
2016
发表期刊JOURNAL OF HIGH ENERGY PHYSICS
期号12
摘要A search for dark matter particles directly produced in proton-proton collisions recorded by the CMS experiment at the LHC is presented. The data correspond to an integrated luminosity of 18.8 fb(-1), at a center-of-mass energy of 8 TeV. The event selection requires at least two jets and no isolated leptons. The razor variables are used to quantify the transverse momentum balance in the jet momenta. The study is performed separately for events with and without jets originating from b quarks. The observed yields are consistent with the expected backgrounds and, depending on the nature of the production mechanism, dark matter production at the LHC is excluded at 90% confidence level for a mediator mass scale I > below 1 TeV. The use of razor variables yields results that complement those previously published.
文章类型Article
关键词Hadron-Hadron scattering (experiments) Supersymmetry
DOI10.1007/JHEP12(2016)088
关键词[WOS]CRESST-II DETECTOR ; MODEL ; EXTENSION ; NEUTRINO ; GALAXIES ; CLUSTERS ; LHC
语种英语
WOS记录号WOS:000391823600001
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/260762
专题粒子天体物理中心
作者单位中国科学院高能物理研究所
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CMS Collaboration. Search for dark matter particles in proton-proton collisions at root 8 = TeV using the razor variables[J]. JOURNAL OF HIGH ENERGY PHYSICS,2016(12).
APA CMS Collaboration.(2016).Search for dark matter particles in proton-proton collisions at root 8 = TeV using the razor variables.JOURNAL OF HIGH ENERGY PHYSICS(12).
MLA CMS Collaboration."Search for dark matter particles in proton-proton collisions at root 8 = TeV using the razor variables".JOURNAL OF HIGH ENERGY PHYSICS .12(2016).
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