Searches for long-lived charged particles in pp collisions at root s=7 and 8 TeV

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	Searches for long-lived charged particles in pp collisions at root s=7 and 8 TeV
	CMS Collaboration
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	2013
期号	7
关键词	ATLAS DETECTOR HADRON COLLIDERS E(+)E(-) ANNIHILATION DARK-MATTER HEAVY LHC SUPERSYMMETRY LEPTONS SQUARK
通讯作者	Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
英文摘要	Results of searches for heavy stable charged particles produced in pp collisions at root s = 7 and 8 TeV are presented corresponding to an integrated luminosity of 5.0 fb(-1) and 18.8 fb(-1), respectively. Data collected with the CMS detector are used to study the momentum, energy deposition, and time-of-flight of signal candidates. Leptons with an electric charge between e/3 and 8e, as well as bound states that can undergo charge exchange with the detector material, are studied. Analysis results are presented for various combinations of signatures in the inner tracker only, inner tracker and muon detector, and muon detector only. Detector signatures utilized are long time-of-flight to the outer muon system and anomalously high (or low) energy deposition in the inner tracker. The data are consistent with the expected background, and upper limits are set on the production cross section of long-lived gluinos, scalar top quarks, and scalar tau leptons, as well as pair produced long-lived leptons. Corresponding lower mass limits, ranging up to 1322 GeV/c(2) for gluinos, are the most stringent to date.
学科主题	Physics
类目[WOS]	Physics, Particles & Fields
收录类别	SCI
语种	英语
WOS记录号	WOS:000323202900035
公开日期	2016-02-25
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/213585]
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. Searches for long-lived charged particles in pp collisions at root s=7 and 8 TeV[J]. JOURNAL OF HIGH ENERGY PHYSICS,2013(7).
APA	CMS Collaboration.(2013).Searches for long-lived charged particles in pp collisions at root s=7 and 8 TeV.JOURNAL OF HIGH ENERGY PHYSICS(7).
MLA	CMS Collaboration."Searches for long-lived charged particles in pp collisions at root s=7 and 8 TeV".JOURNAL OF HIGH ENERGY PHYSICS .7(2013).