Search for disappearing tracks in proton-proton collisions at root s=8 TeV

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	Search for disappearing tracks in proton-proton collisions at root s=8 TeV
	CMS Collaboration
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	2015
卷号	2015 期号:1 页码:96
关键词	Hadron-Hadron Scattering Supersymmetry Exotics
英文摘要	A search is presented for long-lived charged particles that decay within the CMS detector and produce the signature of a disappearing track. Disappearing tracks are identified as those with little or no associated calorimeter energy deposits and with missing hits in the outer layers of the tracker. The search uses proton-proton collision data recorded at root s = 8 TeV that corresponds to an integrated luminosity of 19.5 fb(-1). The results of the search are interpreted in the context of the anomaly-mediated supersymmetry breaking (AMSB) model. The number of observed events is in agreement with the background expectation, and limits are set on the cross section of direct electroweak chargino production in terms of the chargino mass and mean proper lifetime. At 95% confidence level, AMSB models with a chargino mass less than 260 GeV, corresponding to a mean proper lifetime of 0.2 ns, are excluded.
学科主题	Physics
类目[WOS]	Physics, Particles & Fields
收录类别	SCI
WOS记录号	WOS:000348341900001
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/228137]
专题	高能物理研究所_粒子天体物理中心
推荐引用方式 GB/T 7714	CMS Collaboration. Search for disappearing tracks in proton-proton collisions at root s=8 TeV[J]. JOURNAL OF HIGH ENERGY PHYSICS,2015,2015(1):96.
APA	CMS Collaboration.(2015).Search for disappearing tracks in proton-proton collisions at root s=8 TeV.JOURNAL OF HIGH ENERGY PHYSICS,2015(1),96.
MLA	CMS Collaboration."Search for disappearing tracks in proton-proton collisions at root s=8 TeV".JOURNAL OF HIGH ENERGY PHYSICS 2015.1(2015):96.