First Years of Running for the LHCb Calorimeter System
Pascal Perret (for the LHCb Collaboration)
TL;DR
This paper describes the design, calibration procedures, and performance results of the LHCb calorimeter system during its initial years of operation in 2011 and 2012, highlighting its resilience under harsh conditions.
Contribution
It provides a detailed account of the calorimeter system's structure, calibration methods, and performance analysis during early data-taking years at LHCb.
Findings
Calorimeter response degraded due to radiation and high current.
Calibration procedures effectively maintained detector performance.
Performance results demonstrate reliable calorimeter operation in initial years.
Abstract
The calorimeter system of LHCb is subdivided into four sub-detectors which ensure its longitudinal segmentation: a Scintillator Pad Detector (SPD) followed by a Preshower (PS) and then an electromagnetic (ECAL) an hadronic (HCAL) calorimeter. After a description of these detectors, procedures developed to calibrate their response are discussed together with the degradation of response observed due to the harsh conditions (hard radiation and high current). First results on the calorimeter performance over the two most productive years of physics data taking, 2011 and 2012 are given.
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