Operation and performance of the ATLAS Tile Calorimeter in Run 1

Abstract

The Tile Calorimeter is the hadron calorimeter covering the central region of the ATLAS experiment at the Large Hadron Collider. Approximately 10000 photomultipliers collect light from scintillating tiles acting as the active material sandwiched between slabs of steel absorber. This paper gives an overview of the calorimeter's performance during the years 2008-2012 using cosmic-ray muon events and proton-proton collision data at centre-of-mass energies of 7 and 8 TeV with a total integrated luminosity of nearly 30 fb${}^{-1}$. The signal reconstruction methods, calibration systems as well as the detector operation status are presented. The combination of energy calibration methods and time calibration proved excellent performance, resulting in good stability of the calorimeter response under varying conditions during the LHC Run 1. Finally, the Tile Calorimeter response to isolated muons and hadrons as well as to jets from proton-proton collisions is presented. The results demonstrate excellent performance in accord with specifications mentioned in the Technical Design Report.

arXiv comment70 pages in total, author list starting page 54, 28 figures, 11 tables, submitted to EPJC. All figures and tables are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/TCAL-2017-01

References in corpus (20)

• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• The anti-k_t jet clustering algorithm
• A Brief Introduction to PYTHIA 8.1
• Herwig++ Physics and Manual
• The ATLAS Simulation Infrastructure
• Topological cell clustering in the ATLAS calorimeters and its performance in LHC Run 1
• Luminosity determination in pp collisions at $\sqrt{s}$ = 8 TeV using the ATLAS detector at the LHC
• SHERPA 1.alpha, a proof-of-concept version
• Jet energy measurement and its systematic uncertainty in proton-proton collisions at $\sqrt{s}=7$ TeV with the ATLAS detector
• Performance of the ATLAS Trigger System in 2010
• Measurement of the muon reconstruction performance of the ATLAS detector using 2011 and 2012 LHC proton-proton collision data
• Readiness of the ATLAS Tile Calorimeter for LHC collisions
• Measurement of the photon identification efficiencies with the ATLAS detector using LHC Run-1 data
• Performance of algorithms that reconstruct missing transverse momentum in $\sqrt{s}=$ 8 TeV proton-proton collisions in the ATLAS detector
• A measurement of the calorimeter response to single hadrons and determination of the jet energy scale uncertainty using LHC Run-1 $pp$-collision data with the ATLAS detector
• Studies of the performance of the ATLAS detector using cosmic-ray muons
• The Laser calibration of the Atlas Tile Calorimeter during the LHC run 1
• The ATLAS Data Quality Defect Database System
• A PMT-Block test bench

Cited by in corpus (10)

• The SuperFGD Prototype Charged Particle Beam Tests
• Emulating the impact of additional proton-proton interactions in the ATLAS simulation by pre-sampling sets of inelastic Monte Carlo events
• Looking for a vectorlike B quark at LHC using jet substructure
• Study of energy response and resolution of the ATLAS Tile Calorimeter to hadrons of energies from 16 to 30 GeV
• A search for the decays of stopped long-lived particles at $\sqrt{s}=13$ TeV with the ATLAS detector
• The Cesium Source Calibration and Monitoring System of the ATLAS Tile Calorimeter: Design, Construction and Results
• ATLAS Tile calorimeter calibration and monitoring systems
• Clock Distribution and Readout Architecture for the ATLAS Tile Calorimeter at the HL-LHC
• The High Voltage distribution system of the ATLAS Tile Calorimeter and its performance during data taking
• Operational experience and evolution of the ATLAS Tile Hadronic Calorimeter Read-Out Drivers