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Performance of the CMS high-level trigger during LHC Run 2

Journal articles  - Journal Article
Hayrapetyan, A; Tumasyan, A; Adam, W; Andrejkovic, JW; Benato, L; Bergauer, T; Chatterjee, S; Damanakis, K; Dragicevic, M; Hussain, PS; Li, A ...
Published in: Journal of Instrumentation
November 1, 2024
Published version (DOI)

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.

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Seog Oh
Author Seog Oh Physics
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Published In

Journal of Instrumentation

DOI

10.1088/1748-0221/19/11/P11021

EISSN

1748-0221

Publication Date

November 1, 2024

Volume

19

Issue

11

Related Subject Headings

  • Nuclear & Particles Physics
  • 51 Physical sciences
  • 40 Engineering
 

Citation

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Hayrapetyan, A., Tumasyan, A., Adam, W., Andrejkovic, J. W., Benato, L., Bergauer, T., … Brandao Malbouisson, H. (2024). Performance of the CMS high-level trigger during LHC Run 2. Journal of Instrumentation, 19(11). https://doi.org/10.1088/1748-0221/19/11/P11021
Hayrapetyan, A., A. Tumasyan, W. Adam, J. W. Andrejkovic, L. Benato, T. Bergauer, S. Chatterjee, et al. “Performance of the CMS high-level trigger during LHC Run 2.” Journal of Instrumentation 19, no. 11 (November 1, 2024). https://doi.org/10.1088/1748-0221/19/11/P11021.
Hayrapetyan A, Tumasyan A, Adam W, Andrejkovic JW, Benato L, Bergauer T, et al. Performance of the CMS high-level trigger during LHC Run 2. Journal of Instrumentation. 2024 Nov 1;19(11).
Hayrapetyan, A., et al. “Performance of the CMS high-level trigger during LHC Run 2.” Journal of Instrumentation, vol. 19, no. 11, Nov. 2024. Scopus, doi:10.1088/1748-0221/19/11/P11021.
Hayrapetyan A, Tumasyan A, Adam W, Andrejkovic JW, Benato L, Bergauer T, Chatterjee S, Damanakis K, Dragicevic M, Hussain PS, Jeitler M, Krammer N, Li A, Liko D, Mikulec I, Schieck J, Schöfbeck R, Schwarz D, Sonawane M, Waltenberger W, Wulz CE, Janssen T, Van Laer T, Van Mechelen P, Breugelmans N, D’Hondt J, Dansana S, De Moor A, Delcourt M, Heyen F, Lowette S, Makarenko I, Müller D, Tavernier S, Tytgat M, Van Onsem GP, Van Putte S, Vannerom D, Beghin D, Bilin B, Brun H, Clerbaux B, Das AK, De Bruyn I, De Lentdecker G, Evard H, Favart L, Gianneios P, Jaramillo J, Khalilzadeh A, Khan FA, Lee K, Malara A, Paredes S, Shahzad MA, Thomas L, Vanden Bemden M, Vander Velde C, Vanlaer P, Cornelis T, De Coen M, Dobur D, Gokbulut G, Hong Y, Knolle J, Lambrecht L, Marckx D, Mota Amarilo K, Skovpen K, Van Den Bossche N, van der Linden J, Wezenbeek L, Benecke A, Bethani A, Bruno G, Caputo C, De Favereau De Jeneret J, Delaere C, Donertas IS, Giammanco A, Guzel AO, Jain S, Lemaitre V, Lidrych J, Mastrapasqua P, Tran TT, Turkcapar S, Alves GA, Coelho E, Correia Silva G, Hensel C, Menezes De Oliveira T, Mora Herrera C, Rebello Teles P, Soeiro M, Tonelli Manganote EJ, Vilela Pereira A, Aldá Júnior WL, Barroso Ferreira Filho M, Brandao Malbouisson H. Performance of the CMS high-level trigger during LHC Run 2. Journal of Instrumentation. 2024 Nov 1;19(11).
Journal cover image

Published In

Journal of Instrumentation

DOI

10.1088/1748-0221/19/11/P11021

EISSN

1748-0221

Publication Date

November 1, 2024

Volume

19

Issue

11

Related Subject Headings

  • Nuclear & Particles Physics
  • 51 Physical sciences
  • 40 Engineering