May 24 – 28, 2021
America/Vancouver timezone

ECAL trigger performance in Run 2 and improvements for Run 3

May 27, 2021, 5:00 AM
Poster Readout: Trigger and DAQ Posters: Trigger and DAQ


Abraham Tishelman Charny (Northeastern University (US))


The CMS electromagnetic calorimeter (ECAL) is a high resolution crystal calorimeter operating at the CERN LHC. It is read out at 40 MHz (the proton-proton collision rate) in order to provide information to the hardware-level (Level-1) trigger system, which decides whether the full CMS detector must be read out for each collision. The ECAL trigger performance achieved during LHC Run 2 (2015-2018) will be presented. The increased luminosity with respect to the LHC Run 1 has required frequent calibrations during LHC operation to account for radiation-induced changes in crystal and photodetector response. Further improvements in the energy and time reconstruction of the CMS ECAL trigger primitives are being explored for LHC Run 3 (2021-23), using additional features implemented in the on-detector readout. In this presentation, we will review the ECAL trigger performance during LHC Run 2 and present improvements to the ECAL trigger system for LHC Run 3.

TIPP2020 abstract resubmission? Yes, this would have been presented at TIPP2020.

Primary author

Abraham Tishelman Charny (Northeastern University (US))


Presentation materials