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dc.contributor.authorAaboud, Morad
dc.contributor.authorAad, Georges
dc.contributor.authorAbbott, Brad
dc.contributor.authorAbdinov, Ovsat Bahram oglu
dc.contributor.authorAbeloos, Baptiste
dc.contributor.authorAbhayasinghe, Deshan Kavishka
dc.contributor.authorAbidi, Syed Haider
dc.contributor.authorAbouZeid, Hass
dc.contributor.authorAbraham, Nadine L.
dc.contributor.authorAbramowicz, Halina
dc.contributor.authorBuanes, Trygve
dc.contributor.authorEigen, Gerald
dc.contributor.authorFomin, Nikolai
dc.contributor.authorLipniacka, Anna
dc.contributor.authorMartin dit Latour, Bertrand
dc.contributor.authorMæland, Steffen
dc.contributor.authorStugu, Bjarne
dc.contributor.authorYang, Zongchang
dc.contributor.authorZalieckas, Justas
dc.contributor.authorBugge, Magnar Kopangen
dc.contributor.authorCameron, David Gordon
dc.contributor.authorCatmore, James Richard
dc.contributor.authorFeigl, Simon
dc.contributor.authorFranconi, Laura
dc.contributor.authorGaronne, Vincent
dc.contributor.authorGramstad, Eirik
dc.contributor.authorHellesund, Simen
dc.contributor.authorMorisbak, Vanja
dc.contributor.authorOppen, Henrik
dc.contributor.authorOuld-Saada, Farid
dc.contributor.authorPedersen, Maiken
dc.contributor.authorRead, Alexander Lincoln
dc.contributor.authorRøhne, Ole Myren
dc.contributor.authorSandaker, Heidi
dc.contributor.authorSerfon, Cédric
dc.contributor.authorStapnes, Steinar
dc.contributor.authorVadla, Knut Oddvar Høie
dc.contributor.authorAbreu, Henso
dc.contributor.authorAbulaiti, Yiming
dc.contributor.authorAcharya, Bobby S.
dc.contributor.authorAdachi, Shunsuke
dc.contributor.authorAdamczyk, Leszek
dc.contributor.authorAdelman, Jareed
dc.contributor.authorAdersberger, Michael
dc.contributor.authorAdigüzel, Aytül
dc.contributor.authorAdye, Tim
dc.contributor.authorAffolder, Anthony Allen
dc.contributor.authorAfik, Yoav
dc.contributor.authorAgheorghiesei, Catalin
dc.contributor.authorAguilar Saavedra, Juan Antonio
dc.contributor.authorATLAS, Collaboration
dc.date.accessioned2019-07-30T11:49:17Z
dc.date.available2019-07-30T11:49:17Z
dc.date.issued2018-08
dc.PublishedAaboud M, Aad G, Abbott B, Abdinov OBo, Abeloos B, Abhayasinghe DK, Abidi SH, AbouZeid H, Abraham NL, Abramowicz H, Buanes T, Eigen G, Fomin N, Lipniacka A, Martin dit Latour B, Mæland S, Stugu B, Yang Z, Zalieckas J, Bugge MK, Cameron DG, Catmore JR, Feigl S, Franconi L, Garonne V, Gramstad E, Hellesund S, Morisbak V, Oppen H, Ould-Saada F, Pedersen M, Read AL, Røhne OM, Sandaker H, Serfon C, Stapnes S, Vadla KOH, Abreu H, Abulaiti Y, Acharya BS, Adachi S, Adamczyk L, Adelman J, Adersberger M, Adigüzel A, Adye T, Affolder AA, Afik Y, Agheorghiesei C, Aguilar Saavedra JA, ATLAS C. Measurements of b-jet tagging efficiency with the ATLAS detector using tt¯ events at √s = 13 TeV. Journal of High Energy Physics (JHEP). 2018;2018:89eng
dc.identifier.issn1029-8479en_US
dc.identifier.urihttps://hdl.handle.net/1956/20597
dc.description.abstractThe efficiency to identify jets containing b-hadrons (b-jets) is measured using a high purity sample of dileptonic top quark-antiquark pairs (tt¯tt¯) selected from the 36.1 fb−1 of data collected by the ATLAS detector in 2015 and 2016 from proton-proton collisions produced by the Large Hadron Collider at a centre-of-mass energy s√=13s=13 TeV. Two methods are used to extract the efficiency from tt¯tt¯ events, a combinatorial likelihood approach and a tag-and-probe method. A boosted decision tree, not using b-tagging information, is used to select events in which two b-jets are present, which reduces the dominant uncertainty in the modelling of the flavour of the jets. The efficiency is extracted for jets in a transverse momentum range from 20 to 300 GeV, with data-to-simulation scale factors calculated by comparing the efficiency measured using collision data to that predicted by the simulation. The two methods give compatible results, and achieve a similar level of precision, measuring data-to-simulation scale factors close to unity with uncertainties ranging from 2% to 12% depending on the jet transverse momentum.en_US
dc.language.isoengeng
dc.publisherSpringeren_US
dc.rightsAttribution CC BYeng
dc.rights.urihttp://creativecommons.org/licenses/by/4.0eng
dc.titleMeasurements of b-jet tagging efficiency with the ATLAS detector using tt¯ events at √s = 13 TeVen_US
dc.typePeer reviewed
dc.typeJournal article
dc.date.updated2019-01-24T17:13:54Z
dc.description.versionpublishedVersionen_US
dc.rights.holderCopyright 2018 The Author(s)en_US
dc.identifier.doihttps://doi.org/10.1007/jhep08(2018)089
dc.identifier.cristin1613270
dc.source.journalJournal of High Energy Physics (JHEP)
dc.relation.projectNorges forskningsråd: 255182
dc.subject.nsiVDP::Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431
dc.subject.nsiVDP::Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431


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