Search for dark matter in events with heavy quarks and missing transverse momentum in pp collisions with the ATLAS detector
ATLAS Collaboration
刊名EUROPEAN PHYSICAL JOURNAL C
2015
卷号75期号:2页码:92
学科分类Physics
DOI10.1140/epjc/s10052-015-3306-z
文章类型Article
英文摘要This article reports on a search for dark matter pair production in association with bottom or top quarks in 20.3 fb(-1) of pp collisions collected at root s = 8 TeV by the ATLAS detector at the LHC. Events with large missing transverse momentum are selected when produced in association with high-momentum jets of which one or more are identified as jets containing b-quarks. Final states with top quarks are selected by requiring a high jet multiplicity and in some cases a single lepton. The data are found to be consistent with the Standard Model expectations and limits are set on the mass scale of effective field theories that describe scalar and tensor interactions between dark matter and Standard Model particles. Limits on the dark-matter-nucleon cross-section for spin-independent and spin-dependent interactions are also provided. These limits are particularly strong for low-mass dark matter. Using a simplified model, constraints are set on the mass of dark matter and of a coloured mediator suitable to explain a possible signal of annihilating dark matter.
类目[WOS]Physics, Particles & Fields
收录类别SCI
WOS记录号WOS:000354546000007
引用统计
被引频次:32[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/311005/228511
专题中国科学院高能物理研究所_实验物理中心_期刊论文
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ATLAS Collaboration. Search for dark matter in events with heavy quarks and missing transverse momentum in pp collisions with the ATLAS detector[J]. EUROPEAN PHYSICAL JOURNAL C,2015,75(2):92.
APA ATLAS Collaboration.(2015).Search for dark matter in events with heavy quarks and missing transverse momentum in pp collisions with the ATLAS detector.EUROPEAN PHYSICAL JOURNAL C,75(2),92.
MLA ATLAS Collaboration."Search for dark matter in events with heavy quarks and missing transverse momentum in pp collisions with the ATLAS detector".EUROPEAN PHYSICAL JOURNAL C 75.2(2015):92.
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