The monitoring and data quality assessment of the ATLAS liquid argon calorimeter

16th International Conference on Calorimetry in High Energy Physics

Simard, Olivier^1

Centre National de la Recherche Scientifique (CNRS), LAPP-Annecy, 9 Chemin de Bellevue-BP 110, Annecy-le-Vieux Cedex

74941, France^1

关键词: ATLAS liquid argon calorimeters;    Centre-of-mass energies;    Cylindrical electrodes;    Data quality assessment;    Electromagnetic calorimeter;    Electromagnetic calorimetry;    Large Hadron collider LHC;    Parallel plate geometry;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/587/1/012008/pdf
DOI  :  10.1088/1742-6596/587/1/012008

来源: IOP

【 摘 要 】

The ATLAS experiment is designed to study the proton-proton (pp) collisions produced at the Large Hadron Collider (LHC) at CERN. Liquid argon (LAr) sampling calorimeters are used for all electromagnetic calorimetry in the pseudo-rapidity region |η| -1of pp collision data were collected at centre-of-mass energies of 7-8 TeV. Throughout this period, the calorimeter consistently operated with performances very close to specifications, with high data-taking efficiency. This is in large part due to a sophisticated data monitoring procedure designed to quickly identify issues that would degrade the detector performance, to ensure that only the best quality data are used for physics analysis. After a description of the detector design, main characteristics and operation principles, this paper details the data quality assessment procedures developed during the 2011 and 2012 LHC data-taking periods, when more than 98% of the luminosity recorded by ATLAS had high quality LAr calorimeter data suitable for physics analysis.