Operation and performance of the ATLAS Tile Calorimeter in Run 1

M. Aaboud, G. Aad, B. Abbott, J. Abdallah, O. Abdinov, B Abeloos, DK Abhayasinghe, S.H. Abidi, Ossama Sherif Alexander Abouzeid, NL Abraham, H. Abramowicz, H. Abreu, Y. Abulaiti, B.S. Acharya, Sosuke Adachi, L. Adamczyk, J. Adelman, M. Adersberger, A. Adiguzel, T. AdyeA. A. Affolder, Y. Afik, C. Agheorghiesei, J. A. Aguilar-Saavedra, F. Ahmadov, Alejandro Alonso Diaz, Milena Bajic, Geert-Jan Besjes, Flavia de Almeida Dias, Mogens Dam, Gorm Aske Gram Krohn Galster, Jørn Dines Hansen, Peter Henrik Hansen, Jørgen Beck Hansen, James William Monk, hqz214 hqz214, Troels Christian Petersen, Simon Holm Stark, Graig Wiglesworth, Stefania Xella

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Abstract

The Tile Calorimeter is the hadron calorimeter covering the central region of the ATLAS experiment at the Large Hadron Collider. Approximately 10,000 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 energy and time calibration methods performed excellently, 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.

Original languageEnglish
Article number987
JournalEuropean Physical Journal C
Volume78
Issue number12
Number of pages48
ISSN1434-6044
DOIs
Publication statusPublished - 1 Dec 2018

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