Performance of the ALICE Electromagnetic Calorimeter

The performance of the electromagnetic calorimeter of the ALICE experiment during operation in 2010-2018 at the Large Hadron Collider is presented. After a short introduction into the design, readout, and trigger capabilities of the detector, the procedures for data taking, reconstruction, and validation are explained. The methods used for the calibration and various derived corrections are presented in detail. Subsequently, the capabilities of the calorimeter to reconstruct and measure photons, light mesons, electrons and jets are discussed. The performance of the calorimeter is illustrated mainly with data obtained with test beams at the Proton Synchrotron and Super Proton Synchrotron or in proton-proton collisions at root s = 13 TeV, and compared to simulations.

Automated summary

The performance of the electromagnetic calorimeter of the ALICE experiment during its operation from 2010 to 2018 at the Large Hadron Collider is presented. The design, readout, trigger capabilities, data taking procedures, reconstruction, validation procedures, calibration methods, and derived corrections are explained in detail. The capabilities of the calorimeter to reconstruct and measure photons, light mesons, electrons, and jets are discussed, and the performance of the calorimeter is illustrated using data obtained from test beams and proton-proton collisions, compared to simulations.