Advanced Search

Show simple item record

dc.contributor.authorÇetin, Serkant Ali
dc.contributor.authorATLAS Collaboration
dc.date.accessioned2015-03-16T08:49:52Z
dc.date.available2015-03-16T08:49:52Z
dc.date.issued2015-01-15
dc.identifier.citationAad, G, Abajyan, T., Abbott, B., Abdallah, J., Abdel Khalek, S., Abdinov, O. ... ATLAS Collaboration. (2015). Jet energy measurement and its systematic uncertainty in proton-proton collisions at root s=7 TeV with the ATLAS detector. European Physical Journal C, 75(1), 1-101. https://dx.doi.org/10.1140/epjc/s10052-014-3190-yen_US
dc.identifier.issn1434-6044
dc.identifier.issn1434-6052
dc.identifier.other000348991900001 (WOS)
dc.identifier.urihttps://dx.doi.org/10.1140/epjc/s10052-014-3190-y
dc.identifier.urihttps://hdl.handle.net/11376/1117
dc.descriptionÇetin, Serkant Ali (Dogus Author)en_US
dc.description.abstractThe jet energy scale (JES) and its systematic uncertainty are determined for jetsmeasured with the ATLAS detector using proton-proton collision data with a centre-of-mass energy of root s = 7 TeV corresponding to an integrated luminosity of 4.7 fb(-1). Jets are reconstructed from energy deposits forming topological clusters of calorimeter cells using the anti-kt algorithmwith distance parameters R = 0.4 or R = 0.6, and are calibrated using MC simulations. A residual JES correction is applied to account for differences between data and MC simulations. This correction and its systematic uncertainty are estimated using a combination of in situ techniques exploiting the transverse momentum balance between a jet and a reference object such as a photon or a Z boson, for 20 <= p(T)(jet) < 1000 GeV and pseudorapidities vertical bar eta vertical bar < 4.5. The effect of multiple proton-proton interactions is corrected for, and an uncertainty is evaluated using in situ techniques. The smallest JES uncertainty of less than 1% is found in the central calorimeter region (vertical bar eta vertical bar| < 1.2) for jets with 55 = p(T)(jet) < 500 GeV. For central jets at lower p(T), the uncertainty is about 3%. A consistent JES estimate is found using measurements of the calorimeter response of single hadrons in proton-proton collisions and test-beam data, which also provide the estimate for p(T)(jet) > 1 TeV. The calibration of forward jets is derived from dijet p(T) balance measurements. The resulting uncertainty reaches its largest value of 6% for low-p(T) jets at vertical bar eta vertical bar| = 4.5. Additional JES uncertainties due to specific event topologies, such as close-by jets or selections of event samples with an enhanced content of jets originating from light quarks or gluons, are also discussed. The magnitude of these uncertainties depends on the event sample used in a given physics analysis, but typically amounts to 0.5-3%.en_US
dc.language.isoengen_US
dc.publisherSpringeren_US
dc.identifier.doi10.1140/epjc/s10052-014-3190-yen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectHeavy-Ion Collisionsen_US
dc.subjectBarrel Calorimeteren_US
dc.subjectTransverse Flowen_US
dc.subjectCross-Sectionsen_US
dc.subjectBeam Testsen_US
dc.subjectPhotoproductionen_US
dc.subjectSimulationen_US
dc.subjectHeraen_US
dc.subjectFragmentationen_US
dc.subjectGeneratorsen_US
dc.titleJet energy measurement and its systematic uncertainty in proton-proton collisions at root s=7 TeV with the ATLAS detectoren_US
dc.typearticleen_US
dc.relation.journalEuropean Physical Journal Cen_US
dc.departmentDoğuş Üniversitesi, Fen Edebiyat Fakültesi, Fizik Bölümüen_US
dc.authoridTR3959en_US
dc.identifier.volume75en_US
dc.identifier.issue1en_US
dc.identifier.startpage1en_US
dc.identifier.endpage101en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.institutionauthorÇetin, Serkant Ali


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record