Search for heavy stable charged particles in pp collisions at root s=7 TeV

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	Search for heavy stable charged particles in pp collisions at root s=7 TeV
	CMS Collaboration
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	2011
期号	3
关键词	DYNAMICAL SUPERSYMMETRY BREAKING HADRON COLLIDERS
通讯作者	Khachatryan, V (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
英文摘要	The result of a search at the LHC for heavy stable charged particles produced in pp collisions at root s = 7TeV is described. The data sample was collected with the CMS detector and corresponds to an integrated luminosity of 3.1 pb(-1). Momentum and ionization-energy-loss measurements in the inner tracker detector are used to identify tracks compatible with heavy slow-moving particles. Additionally, tracks passing muon identification requirements are also analyzed for the same signature. In each case, no candidate passes the selection, with an expected background of less than 0.1 events. A lower limit at the 95% confidence level on the mass of a stable gluino is set at 398 GeV/c(2), using a conventional model of nuclear interactions that allows charged hadrons containing this particle to reach the muon detectors. A lower limit of 311 GeV/c(2) is also set for a stable gluino in a conservative scenario of complete charge suppression, where any hadron containing this particle becomes neutral before reaching the muon detectors.
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:000289295200024
公开日期	2016-02-25
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/213034]
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 heavy stable charged particles in pp collisions at root s=7 TeV[J]. JOURNAL OF HIGH ENERGY PHYSICS,2011(3).
APA	CMS Collaboration.(2011).Search for heavy stable charged particles in pp collisions at root s=7 TeV.JOURNAL OF HIGH ENERGY PHYSICS(3).
MLA	CMS Collaboration."Search for heavy stable charged particles in pp collisions at root s=7 TeV".JOURNAL OF HIGH ENERGY PHYSICS .3(2011).