Search for dark matter in events with energetic, hadronically decaying top quarks and missing transverse momentum at root s=13 TeV

doi:10.1007/JHEP06(2018)027

CORC > 高能物理研究所 > 中国科学院高能物理研究所 > 粒子天体物理中心

	Search for dark matter in events with energetic, hadronically decaying top quarks and missing transverse momentum at root s=13 TeV
	CMS Collaboration
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	2018
期号	6 页码:27
关键词	Dark matter Hadron-Hadron scattering (experiments) Top physics
ISSN号	1029-8479
DOI	10.1007/JHEP06(2018)027
文献子类	Article
英文摘要	A search for dark matter is conducted in events with large missing transverse momentum and a hadronically decaying, Lorentz-boosted top quark. This study is performed using proton-proton collisions at a center-of-mass energy of 13 TeV, in data recorded by the CMS detector in 2016 at the LHC, corresponding to an integrated luminosity of 36 fb(-1). New substructure techniques, including the novel use of energy correlation functions, are utilized to identify the decay products of the top quark. With no significant deviations observed from predictions of the standard model, limits are placed on the production of new heavy bosons coupling to dark matter particles. For a scenario with purely vector-like or purely axial-vector-like flavor changing neutral currents, mediator masses between 0.20 and 1.75 TeV are excluded at 95% confidence level, given a sufficiently small dark matter mass. Scalar resonances decaying into a top quark and a dark matter fermion are excluded for masses below 3.4 TeV, assuming a dark matter mass of 100 GeV.
WOS关键词	ELECTROWEAK CORRECTIONS ; CANDIDATES ; BOSONS
WOS研究方向	Physics
语种	英语
WOS记录号	WOS:000434412500007
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/286018]
专题	高能物理研究所_粒子天体物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	CMS Collaboration. Search for dark matter in events with energetic, hadronically decaying top quarks and missing transverse momentum at root s=13 TeV[J]. JOURNAL OF HIGH ENERGY PHYSICS,2018(6):27.
APA	CMS Collaboration.(2018).Search for dark matter in events with energetic, hadronically decaying top quarks and missing transverse momentum at root s=13 TeV.JOURNAL OF HIGH ENERGY PHYSICS(6),27.
MLA	CMS Collaboration."Search for dark matter in events with energetic, hadronically decaying top quarks and missing transverse momentum at root s=13 TeV".JOURNAL OF HIGH ENERGY PHYSICS .6(2018):27.