Academic Journal
Performance of the CMS high-level trigger during LHC Run 2
| العنوان: | Performance of the CMS high-level trigger during LHC Run 2 |
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| المؤلفون: | The CMS collaboration, Hayrapetyan, Aram, Erdmann, Wolfram, Horisberger, Roland, Aarrestad, Thea K., Backhaus, Malte, Bonomelli, Giorgia, Calandri, Alessandro, Cazzaniga, Cesare, Datta, Kaustuv, id_orcid:0 000-0002-6674-0015, De Bryas Dexmiers D‘archiac, Paul, De Cosa, Annapaola, Dissertori, Günther, Dittmar, M., Donegà, Mauro, Eble, Florian, Galli, Massimiliano, Gedia, Krunal, Glessgen, Franz, Grab, Christophorus, id_orcid:0 000-0002-6182-3380, Härringer, Nico, id_orcid:0 000-0002-7217-4750, Harte, Thierry Guillaume, Hits, Dmitry Alexandrovich, id_orcid:0 000-0002-3135-6427, Lustermann, Werner, id_orcid:0 000-0003-4970-2217, Lyon, Anne-Mazarine, Manzoni, Riccardo Andrea, Marchegiani, Matteo, Marchese, Luigi, Mascellani, Anna, Nessi-Tedaldi, Francesca, Pauss, Felicitas, Perovic, Vasilije, Pigazzini, Simone, id_orcid:0 000-0002-8046-4344, Ristic, Branislav, id_orcid:0 000-0002-8610-1130, Seidita, Roberto, Steggemann, Jan, Tarabini, Alessandro, Valsecchi, Davide, Wallny, Rainer, id_orcid:0 000-0001-8038-1613 |
| المصدر: | Journal of Instrumentation, 19 (11) |
| بيانات النشر: | IOP Publishing |
| سنة النشر: | 2024 |
| المجموعة: | ETH Zürich Research Collection |
| مصطلحات موضوعية: | Large detector systems for particle and astroparticle physics, Trigger concepts and systems (hardware and software) |
| الوصف: | The CERN LHC provided proton and heavy ion collisions during its Run 2 operation period from 2015 to 2018. Proton-proton collisions reached a peak instantaneous luminosity of 2.1 × 10³⁴ cm⁻²s⁻¹, twice the initial design value, at √(s) = 13 TeV. The CMS experiment records a subset of the collisions for further processing as part of its online selection of data for physics analyses, using a two-level trigger system: the Level-1 trigger, implemented in custom-designed electronics, and the high-level trigger, a streamlined version of the offline reconstruction software running on a large computer farm. This paper presents the performance of the CMS high-level trigger system during LHC Run 2 for physics objects, such as leptons, jets, and missing transverse momentum, which meet the broad needs of the CMS physics program and the challenge of the evolving LHC and detector conditions. Sophisticated algorithms that were originally used in offline reconstruction were deployed online. Highlights include a machine-learning b tagging algorithm and a reconstruction algorithm for tau leptons that decay hadronically. ; ISSN:1748-0221 |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/application/pdf |
| اللغة: | English |
| Relation: | info:eu-repo/grantAgreement/EC/H2020/758316; http://hdl.handle.net/20.500.11850/711425 |
| DOI: | 10.3929/ethz-b-000711425 |
| الاتاحة: | https://hdl.handle.net/20.500.11850/711425 https://doi.org/10.3929/ethz-b-000711425 |
| Rights: | info:eu-repo/semantics/openAccess ; http://creativecommons.org/licenses/by/4.0/ ; Creative Commons Attribution 4.0 International |
| رقم الانضمام: | edsbas.46A797CC |
| قاعدة البيانات: | BASE |
| DOI: | 10.3929/ethz-b-000711425 |
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