Jet energy scale and resolution in the CMS experiment in pp collisions at 8 TeV

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dc.authoridHall, Geoffrey/0000-0002-6299-8385
dc.authoridFasanella, Daniele/0000-0002-2926-2691
dc.authoridAndrosov, Konstantin/0000-0003-2694-6542
dc.authoridBelyaev, Andrey/0000-0003-1692-1173
dc.authoridD'Alessandro, Raffaello/0000-0001-7997-0306
dc.authoridKrolikowski, Jan/0000-0002-3055-0236
dc.authoridGuler, Yalcin/0000-0001-7598-5252
dc.contributor.authorKhachatryan, V.
dc.contributor.authorSirunyan, A. M.
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorAsilar, E.
dc.contributor.authorBergauer, T.
dc.contributor.authorThe CMS Collaboration
dc.date.accessioned2025-03-07T20:14:33Z
dc.date.available2025-03-07T20:14:33Z
dc.date.issued2017
dc.departmentÇağ Üniversitesi
dc.description.abstractImproved jet energy scale corrections, based on a data sample corresponding to an integrated luminosity of 19.7 fb(-1) collected by the CMS experiment in proton-proton collisions at a center-of-mass energy of 8 TeV, are presented. The corrections as a function of pseudorapidity eta and transverse momentum (pT) are extracted from data and simulated events combining several channels and methods. They account successively for the effects of pileup, uniformity of the detector response, and residual data-simulation jet energy scale differences. Further corrections, depending on the jet flavor and distance parameter (jet size) R, are also presented. The jet energy resolution is measured in data and simulated events and is studied as a function of pileup, jet size, and jet flavor. Typical jet energy resolutions at the central rapidities are 15-20% at 30 GeV, about 10% at 100 GeV, and 5% at 1 TeV. The studies exploit events with dijet topology, as well as photon+jet, Z+jet and multijet events. Several new techniques are used to account for the various sources of jet energy scale corrections, and a full set of uncertainties, and their correlations, are provided. The final uncertainties on the jet energy scale are below 3% across the phase space considered by most analyses (p(T) > 30 GeV and vertical bar eta vertical bar < 5.0). In the barrel region (vertical bar eta vertical bar < 1.3) an uncertainty below 1% for p(T) > 30 GeV is reached, when excluding the jet flavor uncertainties, which are provided separately for different jet flavors. A new benchmark for jet energy scale determination at hadron colliders is achieved with 0.32% uncertainty for jets with p(T) of the order of 165-330 GeV, and vertical bar eta vertical bar < 0.8.
dc.description.sponsorshipSTFC [ST/N001273/1, ST/H000925/1, ST/M004775/1, PP/E000479/1] Funding Source: UKRI; Direct For Mathematical & Physical Scien; Division Of Physics [1624356, 1151640, 1606321, 1508869, 1506168, 1211067, 1506130] Funding Source: National Science Foundation
dc.identifier.doi10.1088/1748-0221/12/02/P02014
dc.identifier.issn1748-0221
dc.identifier.scopus2-s2.0-85034950246
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1088/1748-0221/12/02/P02014
dc.identifier.urihttps://hdl.handle.net/20.500.12507/2952
dc.identifier.volume12
dc.identifier.wosWOS:000397826200014
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherIop Publishing Ltd
dc.relation.ispartofJournal of Instrumentation
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20241226
dc.subjectLarge detector-systems performance
dc.subjectPerformance of High Energy Physics Detectors
dc.titleJet energy scale and resolution in the CMS experiment in pp collisions at 8 TeV
dc.typeArticle

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