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Performance of photon reconstruction and identification with the CMS detector in proton-proton collisions at root s=8TeV
CMS Collaboration
2015
发表期刊JOURNAL OF INSTRUMENTATION
卷号10页码:P08010
文章类型Article
摘要A description is provided of the performance of the CMS detector for photon reconstruction and identification in proton-proton collisions at a centre-of-mass energy of 8 TeV at the CERN LHC. Details are given on the reconstruction of photons from energy deposits in the electromagnetic calorimeter (ECAL) and the extraction of photon energy estimates. The reconstruction of electron tracks from photons that convert to electrons in the CMS tracker is also described, as is the optimization of the photon energy reconstruction and its accurate modelling in simulation, in the analysis of the Higgs boson decay into two photons. In the barrel section of the ECAL, an energy resolution of about 1% is achieved for unconverted or late-converting photons from H -> gamma gamma decays. Different photon identification methods are discussed and their corresponding selection efficiencies in data are compared with those found in simulated events.
关键词Pattern recognition cluster finding calibration and fitting methods Performance of High Energy Physics Detectors
学科领域Instruments & Instrumentation
DOI10.1088/1748-0221/10/08/P08010
收录类别SCI ; EI
WOS类目Instruments & Instrumentation
WOS记录号WOS:000362378700029
引用统计
被引频次:74[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228779
专题粒子天体物理中心
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CMS Collaboration. Performance of photon reconstruction and identification with the CMS detector in proton-proton collisions at root s=8TeV[J]. JOURNAL OF INSTRUMENTATION,2015,10:P08010.
APA CMS Collaboration.(2015).Performance of photon reconstruction and identification with the CMS detector in proton-proton collisions at root s=8TeV.JOURNAL OF INSTRUMENTATION,10,P08010.
MLA CMS Collaboration."Performance of photon reconstruction and identification with the CMS detector in proton-proton collisions at root s=8TeV".JOURNAL OF INSTRUMENTATION 10(2015):P08010.
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