Reconstruction of signal amplitudes in the CMS electromagnetic calorimeter in the presence of overlapping proton-proton interactions

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dc.WoS.categoriesInstruments & Instrumentationen_US
dc.authorid0000-0002-9007-8260en_US
dc.contributor.authorYetkin, Elif Aslı
dc.date.accessioned2020-11-04T11:10:10Z
dc.date.available2020-11-04T11:10:10Z
dc.date.issued2020-10
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Enerji Sistemleri Mühendisliği Bölümüen_US
dc.description57 pagesen_US
dc.description.abstractA template fitting technique for reconstructing the amplitude of signals produced by the lead tungstate crystals of the CMS electromagnetic calorimeter is described. This novel approach is designed to suppress the contribution to the signal of the increased number of out-of-time interactions per beam crossing following the reduction of the accelerator bunch spacing from 50 to 25 ns at the start of Run 2 of the LHC. Execution of the algorithm is sufficiently fast for it to be employed in the CMS high-level trigger. It is also used in the offline event reconstruction. Results obtained from simulations and from Run 2 collision data (2015-2018) demonstrate a substantial improvement in the energy resolution of the calorimeter over a range of energies extending from a few GeV to several tens of GeV.en_US
dc.description.tableofcontents1 Introduction 1 2 The CMS detector 2 3 Data samples and simulation 3 4 High-pT muon reconstruction overview 4 4.1 Reconstruction 5 4.2 Muon radiative energy losses: showering 7 4.3 Identification 10 5 Efficiency measurements 11 5.1 High-pT muon identification efficiency 12 5.2 Reconstruction efficiency 15 5.3 Combined L1 and HLT efficiency 17 5.4 The L1 trigger efficiency 21 6 Momentum assignment performance 24 6.1 Momentum performance in simulation 24 6.2 Momentum resolution from cosmic ray muons and collision events 27 6.3 Momentum scale from collision events 30 7 Summary 31 The CMS collaboration 37en_US
dc.fullTextLevelFull Texten_US
dc.identifier.doi10.1088/1748-0221/15/10/P10002
dc.identifier.issn1748-0221
dc.identifier.scopus2-s2.0-85096494444en_US
dc.identifier.urihttps://hdl.handle.net/11411/2421
dc.identifier.urihttps://doi.org/10.1088/1748-0221/15/10/P10002
dc.identifier.wosWOS:000577278000002en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.issue10en_US
dc.language.isoenen_US
dc.nationalInternationalen_US
dc.numberofauthors1000+en_US
dc.publisherIOP Publishing Ltd.en_US
dc.relation.ispartofJournal of Instrumentationen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectPattern recognition, cluster finding, calibration and fitting methodsen_US
dc.subjectLarge detector-systems performanceen_US
dc.titleReconstruction of signal amplitudes in the CMS electromagnetic calorimeter in the presence of overlapping proton-proton interactions
dc.typeArticle
dc.volume15en_US

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