Calibration and performance of the LHCb calorimeters in Run 1 and 2 at the LHC

TL;DR

This paper details the calibration procedures and performance evaluation of the LHCb calorimeters during Run 1 and 2 at the LHC, including methods, changes with increased beam energy, and results from collision data at various energies.

Contribution

It provides a comprehensive overview of the calibration techniques and performance metrics of the LHCb calorimeters across two runs, highlighting adaptations for higher beam energies.

Findings

Calorimeter calibration methods were successfully applied in both runs.

Performance metrics for gamma and pi0 detection are detailed.

Results demonstrate effective calorimeter operation at multiple collision energies.

Abstract

The calibration and performance of the LHCb Calorimeter system in Run 1 and 2 at the LHC are described. After a brief description of the sub-detectors and of their role in the trigger, the calibration methods used for each part of the system are reviewed. The changes which occurred with the increase of beam energy in Run 2 are explained. The performances of the calorimetry for $\gamma$ and $\pi^0$ are detailed. A few results from collisions recorded at $\sqrt {s}$ = 7, 8 and 13 TeV are shown.