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Optimisation of large-radius jet reconstruction for the ATLAS detector in 13 TeV proton-proton collisions

Jet substructure has provided new opportunities for searches and measurements at the LHC, and has seen continuous development since the optimization of the large-radius jet definition used by ATLAS was performed during Run 1. A range of new inputs to jet reconstruction, pile-up mitigation techniques...

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Main Authors: Aaboud, Morad (Author) , Andrei, George Victor (Author) , Antel, Claire (Author) , Baas, Alessandra Edda (Author) , Bolz, Arthur (Author) , Britzger, Daniel (Author) , Djuvsland, Julia Isabell (Author) , Dunford, Monica (Author) , Franchino, Silvia (Author) , Geisler, Manuel Patrice (Author) , Giulini, Maddalena (Author) , Jongmanns, Jan (Author) , Kolb, Mathis (Author) , Lisovyi, Mykhailo (Author) , Schöning, André (Author) , Schultz-Coulon, Hans-Christian (Author) , Sosa Corral, David E. (Author) , Spieker, Thomas (Author) , Stamen, Rainer (Author) , Starovoitov, Pavel (Author) , Suchek, Stanislav (Author) , Wessels, Martin (Author) , Yue, Xiaoguang (Author)
Corporate Author: ATLAS Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 19 April 2021
In: The European physical journal. C, Particles and fields
Year: 2021, Volume: 81, Issue: 4, Pages: 1-47
ISSN:1434-6052
DOI:10.1140/epjc/s10052-021-09054-3
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1140/epjc/s10052-021-09054-3
Verlag, lizenzpflichtig, Volltext: https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=DynamicDOIArticle&SrcApp=WOS&KeyAID=10.1140%2Fepjc%2Fs10052-021-09054-3&DestApp=DOI&SrcAppSID=F1xQ7eXr59eYwQGP8Ie&SrcJTitle=EUROPEAN+PHYSICAL+JOURNAL+C&DestDOIRegistrantName=Springer-Verlag
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Author Notes:ATLAS Collaboration
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Summary:Jet substructure has provided new opportunities for searches and measurements at the LHC, and has seen continuous development since the optimization of the large-radius jet definition used by ATLAS was performed during Run 1. A range of new inputs to jet reconstruction, pile-up mitigation techniques and jet grooming algorithms motivate an optimisation of large-radius jet reconstruction for ATLAS. In this paper, this optimisation procedure is presented, and the performance of a wide range of large-radius jet definitions is compared. The relative performance of these jet definitions is assessed using metrics such as their pileup stability, ability to identify hadronically decaying W bosons and top quarks with large transverse momenta. A new type of jet input object, called a 'unified flow object' is introduced which combines calorimeter- and inner-detector-based signals in order to achieve optimal performance across a wide kinematic range. Large-radius jet definitions are identified which significantly improve on the current ATLAS baseline definition, and their modelling is studied using pp collisions recorded by the ATLAS detector at TeV during 2017.
Item Description:ATLAS Collaboration: Andrei, V., Antel, C., Baas, A.E., Bolz, A., Britzger, D., Djuvsland, J.I., Dunford, M., Franchino, S., Geisler, M.P., Giulini, M., Jongmanns, J., Kolb, M., Lisovyi, M., Schoening, A., Schultz-Coulon, H.-C., Sosa, D., Spieker, T.M., Stamen, R., Starovoitov, P., Suchek, S., Wessels, M., Yue, X. [und viele weitere]
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Physical Description:Online Resource
ISSN:1434-6052
DOI:10.1140/epjc/s10052-021-09054-3

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