The performance of the CMS muon detector in proton-proton collisions at root s=7 TeV at the LHC

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	The performance of the CMS muon detector in proton-proton collisions at root s=7 TeV at the LHC
	CMS Collaboration
刊名	JOURNAL OF INSTRUMENTATION
	2013
卷号	8
关键词	RESISTIVE PLATE CHAMBERS BEAM TEST TRIGGER LOCALIZATION SIMULATION MWPC
通讯作者	Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
英文摘要	The performance of all subsystems of the CMS muon detector has been studied by using a sample of proton-proton collision data at root s = 7TeV collected at the LHC in 2010 that corresponds to an integrated luminosity of approximately 40 pb(-1). The measured distributions of the major operational parameters of the drift tube (DT), cathode strip chamber (CSC), and resistive plate chamber (RPC) systems met the design specifications. The spatial resolution per chamber was 80-120 mu m in the DTs, 40-150 mu m in the CSCs, and 0.8-1.2 cm in the RPCs. The time resolution achievable was 3 ns or better per chamber for all 3 systems. The efficiency for reconstructing hits and track segments originating from muons traversing the muon chambers was in the range 95-98%. The CSC and DT systems provided muon track segments for the CMS trigger with over 96% efficiency, and identified the correct triggering bunch crossing in over 99.5% of such events. The measured performance is well reproduced by Monte Carlo simulation of the muon system down to the level of individual channel response. The results confirm the high efficiency of the muon system, the robustness of the design against hardware failures, and its effectiveness in the discrimination of backgrounds.
学科主题	Instruments & Instrumentation
类目[WOS]	Instruments & Instrumentation
收录类别	SCI
语种	英语
WOS记录号	WOS:000329193500027
公开日期	2016-02-25
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/213650]
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. The performance of the CMS muon detector in proton-proton collisions at root s=7 TeV at the LHC[J]. JOURNAL OF INSTRUMENTATION,2013,8.
APA	CMS Collaboration.(2013).The performance of the CMS muon detector in proton-proton collisions at root s=7 TeV at the LHC.JOURNAL OF INSTRUMENTATION,8.
MLA	CMS Collaboration."The performance of the CMS muon detector in proton-proton collisions at root s=7 TeV at the LHC".JOURNAL OF INSTRUMENTATION 8(2013).