Pileup mitigation at CMS in 13 TeV data

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dc.authorid0000-0002-2614-5860en_US
dc.contributor.authorSirunyan, A. M.
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorAmbrogi, F.
dc.contributor.authorBergauer, T.
dc.contributor.authorSağır, Sinan
dc.date.accessioned2020-10-30T12:36:08Z
dc.date.available2020-10-30T12:36:08Z
dc.date.issued2020en_US
dc.departmentKMÜ, Sağlık Hizmetleri Meslek Yüksekokulu, Tıbbi Hizmetler ve Teknikler Bölümüen_US
dc.descriptionWOS:000577273400018en_US
dc.description.abstractWith increasing instantaneous luminosity at the LHC come additional reconstruction challenges. At high luminosity, many collisions occur simultaneously within one proton-proton bunch crossing. The isolation of an interesting collision from the additional "pileup" collisions is needed for effective physics performance. In the CMS Collaboration, several techniques capable of mitigating the impact of these pileup collisions have been developed. Such methods include charged-hadron subtraction, pileup jet identification, isospin-based neutral particle "delta beta" correction, and, most recently, pileup per particle identification. This paper surveys the performance of these techniques for jet and missing transverse momentum reconstruction, as well as muon isolation. The analysis makes use of data corresponding to 35.9 fb(-1) collected with the CMS experiment in 2016 at a center-of-mass energy of 13 TeV. The performance of each algorithm is discussed for up to 70 simultaneous collisions per bunch crossing. Significant improvements are found in the identification of pileup jets, the jet energy, mass, and angular resolution, missing transverse momentum resolution, and muon isolation when using pileup per particle identification.en_US
dc.identifier.citationSirunyan, A. M., Tumasyan, A., Adam, W., Ambrogi, F., Bergauer, T. Sağır,S...et al.(2020).Pileup mitigation at CMS in 13 TeV data. Journal of Instrumentation, 15,9.en_US
dc.identifier.doi10.1088/1748-0221/15/09/P09018
dc.identifier.issn1748-0221
dc.identifier.issue9en_US
dc.identifier.scopus2-s2.0-85096670844
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1088/1748-0221/15/09/P09018
dc.identifier.urihttps://hdl.handle.net/11492/3710
dc.identifier.volume15en_US
dc.identifier.wosWOS:000577273400018
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Sceince
dc.indekslendigikaynakScopus
dc.institutionauthorSağır, Sinan
dc.language.isoen
dc.publisherIop Publishing Ltd.en_US
dc.relation.journalJournal of Instrumentationen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectCalorimeter Methodsen_US
dc.subjectCalorimetersen_US
dc.subjectLarge Detector-Systems Performanceen_US
dc.titlePileup mitigation at CMS in 13 TeV dataen_US
dc.typeArticle

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