Search for direct production of super symmetric partners of the top quark in the all-jets final state in proton-proton collisions at root s=13 TeV

doi:10.1007/JHEP10(2017)005

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	Search for direct production of super symmetric partners of the top quark in the all-jets final state in proton-proton collisions at root s=13 TeV
	CMS Collaboration
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	2017
期号	10 页码:5
关键词	Hadron-Hadron scattering (experiments) Supersymmetry
ISSN号	1029-8479
DOI	10.1007/JHEP10(2017)005
文献子类	Article
英文摘要	A search for direct production of top squark pairs in events with jets and large transverse momentum imbalance is presented. The data are based on proton-proton collisions at a center-of-mass energy of 13 TeV, collected with the CMS detector in 2016 at the CERN LHC, and correspond to an integrated luminosity of 35.9 fb(-1). The search considers a variety of R-parity conserving supersymmetric models, including ones for which the top squark and neutralino masses are nearly degenerate. Specialized jet reconstruction tools are developed to exploit the unique characteristics of the signal topologies. With no significant excess of events observed above the standard model expectations, upper limits are set on the direct top squark pair production cross section in the context of simplified supersymmetric models for various decay hypotheses. Models with larger differences in mass between the top squark and neutralino are probed for masses up to 1040 and 500 GeV, respectively, whereas models with a more compressed mass hierarchy are probed up to 660 and 610 GeV, respectively. The smallest mass difference probed is for masses near to 550 and 540 GeV, respectively.
WOS关键词	SUPERSYMMETRIC THEORIES ; DARK-MATTER ; PLUS PLUS ; PARTICLE ; NATURALNESS ; BREAKING ; PHYSICS ; BOSON ; PAIR ; MASS
WOS研究方向	Physics
语种	英语
WOS记录号	WOS:000412101600005
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/284616]
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 direct production of super symmetric partners of the top quark in the all-jets final state in proton-proton collisions at root s=13 TeV[J]. JOURNAL OF HIGH ENERGY PHYSICS,2017(10):5.
APA	CMS Collaboration.(2017).Search for direct production of super symmetric partners of the top quark in the all-jets final state in proton-proton collisions at root s=13 TeV.JOURNAL OF HIGH ENERGY PHYSICS(10),5.
MLA	CMS Collaboration."Search for direct production of super symmetric partners of the top quark in the all-jets final state in proton-proton collisions at root s=13 TeV".JOURNAL OF HIGH ENERGY PHYSICS .10(2017):5.