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Performance of the front-end electronics of the CMS electromagnetic calorimeter barrel for the High-Luminosity LHC

  • CMS Electromagnetic Calorimeter Group
  • Centro Brasileiro de Pesquisas Fisicas
  • Institute of High Energy Physics, Chinese Academy of Sciences
  • Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split
  • Faculty of Science, University of Split
  • University of Cyprus
  • Université Paris-Saclay
  • Ip Paris
  • Institut de Physique des 2 Infinis de Lyon
  • Tata Institute of Fundamental Research, Mumbai
  • INFN Sezione di Milano-Bicocca
  • University of Milano-Bicocca
  • Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
  • University of Pisa
  • Sezione di Roma
  • University of Rome
  • INFN Sezione di Torino
  • University of Turin
  • Laboratory of Molecular Pathology
  • INFN Sezione di Trieste
  • University of Trieste
  • Lisboa
  • University of Belgrade
  • University of Belgrade
  • European Organization for Nuclear Research
  • Paul Scherrer Institut
  • ETH Zurich
  • National Central University
  • National Taiwan University
  • University of Bristol
  • CCLRC Rutherford Appleton Laboratory
  • California Institute of Technology
  • Carnegie Mellon University
  • Florida State University
  • University of Kansas
  • University of Minnesota Twin Cities
  • Northeastern University
  • University of Notre Dame
  • University of Virginia

Résultats de recherche: Contribution à un journalArticleRevue par des pairs

Résumé

The performance of the CMS electromagnetic calorimeter upgraded readout electronics, developed for the High-Luminosity phase of the LHC, is discussed. Data collected in two beam test campaigns conducted in 2018 and 2021 at the H4 and H2 beam lines of the CERN SPS are analyzed. Time and energy resolutions are measured on a 5× 5 matrix of lead tungstate crystals equipped with prototypes of the new front end readout electronics, using electron and pion beams of energies spanning from 25 to 250 GeV. In both campaigns the constant term of the energy resolution is measured to be better than 0.6% and the time resolution for electrons with energies above 50 GeV is measured to be better than 30 ps, fulfilling the design requirements.

langue originaleAnglais
Numéro d'articleP01001
journalJournal of Instrumentation
Volume21
Numéro de publication1
Les DOIs
étatPublié - 1 janv. 2026

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