Monitoring and data quality assessment of the ATLAS liquid argon calorimeter

TL;DR

This paper describes the development and validation of a data monitoring procedure for the ATLAS liquid argon calorimeter, ensuring high-quality data for physics analysis during LHC runs at 7 and 8 TeV.

Contribution

It introduces an advanced data quality monitoring method that effectively identifies issues, maintaining over 98% of usable data during 2011-2012 LHC operations.

Findings

Over 98% of recorded luminosity had high-quality calorimeter data

The validation procedure was successfully implemented during 2011-2012

The method ensured reliable data for physics analyses

Abstract

The liquid argon calorimeter is a key component of the ATLAS detector installed at the CERN Large Hadron Collider. The primary purpose of this calorimeter is the measurement of electrons and photons. It also provides a crucial input for measuring jets and missing transverse momentum. An advanced data monitoring procedure was designed to quickly identify issues that would affect detector performance and ensure that only the best quality data are used for physics analysis. This article presents the validation procedure developed during the 2011 and 2012 LHC data taking periods, in which more than 98% of the proton proton luminosity recorded by ATLAS at a centre-of-mass energy of 7 and 8 TeV had calorimeter data quality suitable for physics analysis.