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| Titel: | Configuration and performance of the ATLAS b-jet triggers in Run 2 |
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| Mitwirkende: | Aad, Georges [VerfasserIn]  |
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| | Andrei, George Victor [VerfasserIn] |
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| | Bartels, Falk [VerfasserIn] |
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| | Czurylo, Marta [VerfasserIn] |
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| | Dittmeier, Sebastian [VerfasserIn] |
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| | Dunford, Monica [VerfasserIn] |
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| | Franchino, Silvia [VerfasserIn] |
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| | Klassen, Martin [VerfasserIn] |
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| | Krishnan, Anjali [VerfasserIn] |
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| | Mkrtchyan, Tigran [VerfasserIn] |
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| | Napolitano, Fabrizio [VerfasserIn] |
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| | Ott, Philipp [VerfasserIn] |
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| | Rassloff, Damir Fabrice [VerfasserIn] |
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| | Schöning, André [VerfasserIn] |
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| | Schultz-Coulon, Hans-Christian [VerfasserIn] |
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| | Spieker, Thomas [VerfasserIn] |
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| | Stamen, Rainer [VerfasserIn] |
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| | Starovoitov, Pavel [VerfasserIn] |
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| | Vigani, Luigi [VerfasserIn] |
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| | Weber, Sebastian [VerfasserIn] |
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| | Wessels, Martin [VerfasserIn] |
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| | Yue, Xiaoguang [VerfasserIn] |
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| Körperschaft: | ATLAS Collaboration [VerfasserIn] |
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| Verf.angabe: | ATLAS Collaboration |
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| E-Jahr: | 2021 |
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| Jahr: | 9 December 2021 |
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| Umfang: | 45 S. |
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| Fussnoten: | Gesehen am 24.11.2022 ; ATLAS Collaboration: G. Aad, V. Andrei, F. Bartels, M.M. Czurylo, S.J. Dittmeier, M. Dunford, S. Franchino, M. Klassen, A. Krishnan, T. Mkrtchyan, F. Napolitano, P.S. Ott, D.F. Rassloff, A. Schoening, H-C. Schultz-Coulon, T.M. Spieker, R. Stamen, P. Starovoitov, L. Vigani, S.M. Weber, M. Wessels, X. Yue [und 2826 weitere] |
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| Titel Quelle: | Enthalten in: The European physical journal / C |
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| Ort Quelle: | Berlin : Springer, 1998 |
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| Jahr Quelle: | 2021 |
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| Band/Heft Quelle: | 81(2021), 12, Artikel-ID 1087, Seite 1-45 |
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| ISSN Quelle: | 1434-6052 |
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| Abstract: | Several improvements to the ATLAS triggers used to identify jets containing b-hadrons (b-jets) were implemented for data-taking during Run 2 of the Large Hadron Collider from 2016 to 2018. These changes include reconfiguring the b-jet trigger software to improve primary-vertex finding and allow more stable running in conditions with high pile-up, and the implementation of the functionality needed to run sophisticated taggers used by the offline reconstruction in an online environment. These improvements yielded an order of magnitude better light-flavour jet rejection for the same b-jet identification efficiency compared to the performance in Run 1 (2011-2012). The efficiency to identify b-jets in the trigger, and the conditional efficiency for b-jets that satisfy offline b-tagging requirements to pass the trigger are also measured. Correction factors are derived to calibrate the b-tagging efficiency in simulation to match that observed in data. The associated systematic uncertainties are substantially smaller than in previous measurements. In addition, b-jet triggers were operated for the first time during heavy-ion data-taking, using dedicated triggers that were developed to identify semileptonic b-hadron decays by selecting events with geometrically overlapping muons and jets. |
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| DOI: | doi:10.1140/epjc/s10052-021-09775-5 |
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| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext: https://doi.org/10.1140/epjc/s10052-021-09775-5 |
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| | DOI: https://doi.org/10.1140/epjc/s10052-021-09775-5 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| K10plus-PPN: | 1823506046 |
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| Verknüpfungen: | → Zeitschrift |
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Configuration and performance of the ATLAS b-jet triggers in Run 2 / Aad, Georges [VerfasserIn]; 9 December 2021 (Online-Ressource)
