Performance and calibration of quark/gluon-jet taggers using 140 fb^−1 of pp collisions at √s=13 TeV with the ATLAS detector : = Performance and calibration of quark/gluon-jet taggers using 140 fb^−1 of pp collisions at [square root]s=13 TeV with the ATLAS detector

Abstract: The identification of jets originating from quarks and gluons, often referred to as quark/gluon tagging, plays an important role in various analyses performed at the Large Hadron Collider, as Standard Model measurements and searches for new particles decaying to quarks often rely on suppressing a large gluon-induced background. This paper describes the measurement of the efficiencies of quark/gluon taggers developed within the ATLAS Collaboration, using TeV proton–proton collision data with an integrated luminosity of 140 fb collected by the ATLAS experiment. Two taggers with high performances in rejecting jets from gluon over jets from quarks are studied: one tagger is based on requirements on the number of inner-detector tracks associated with the jet, and the other combines several jet substructure observables using a boosted decision tree. A method is established to determine the quark/gluon fraction in data, by using quark/gluon-enriched subsamples defined by the jet pseudorapidity. Differences in tagging efficiency between data and simulation are provided for jets with transverse momentum between 500 GeV and 2 TeV and for multiple tagger working points

Object Details

• Alternative title: Performance and calibration of quark/gluon-jet taggers using 140 fb^−1 of pp collisions at [square root]s=13 TeV with the ATLAS detector
• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch
• Notes: Chinese physics. - 48, 2 (2024) , 023001, ISSN: 2058-6132

Contributors, Places and Time

• Event: Veröffentlichung
• (where): Freiburg
• (who): Universität
• (when): 2024
• Creator: ATLAS Collaboration CERN, [Study Group] ; Argyropoulos, Spyridon ; Becherer, Fabian ; Bhalla, Naman Kumar ; Böhler, Michael ; Burlayenko, Oleksandr ; Diehl, Leena ; Froch, Alexander ; Gurdasani, Simran Sunil ; Heidegger, Constantin ; Heidegger, Kim K. ; Herten, Gregor ; Jain, Prasham ; Jakobs, Karl ; Jenni, Peter ; Kalaitzidou, Ilia ; Karentzos, Efstathios ; Köneke, Karsten ; Küsters, Roman ; Kuprash, Oleg ; Landgraf, Ulrich ; Lang, Valerie ; Moskalets, Tetiana ; Öncel, Ömer Ogul ; Parzefall, Ulrich ; Plesanovs, Vladislavs ; Pretel, Jose ; Rafanoharana, Dimbiniaina ; Rodríguez Rodríguez, Arturo ; Rossini, Lorenzo ; Rottler, Benjamin ; Rúriková, Zuzana ; Sammel, Dirk ; Sauerburger, Frank ; Schleicher, Katharina E. ; Scholer, Patrick ; Schumacher, Markus ; Solovieva, Ksenia ; Sperlich, Dennis ; Weiser, Christian ; Winter, Benedict T. ; Zanzi, Daniele ; et al
• Contributor: Experimentelle Teilchenphysik

Further information

• DOI: 10.1088/1674-1137/acf701
• URN: urn:nbn:de:bsz:25-freidok-2542771
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 25.03.2025, 1:45 PM CET