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Performance of the ATLAS Calorimeters using Cosmic Ray Muons

Abstract : The ATLAS calorimeters provide precision measurements of electrons, photons, jets and missing transverse energy produced in the LHC proton-proton collisions. High granularity liquid-argon electromagnetic and hadronic sampling calorimeters are used. An iron-scintillator hadronic calorimeter surrounds the liquid-argon detectors. Results assessing the calorimeter performance obtained using cosmic ray muons are presented. The non-uniformity of the barrel electromagnetic calorimeter response is consistent at the percent level with the simulated response. The response uniformity of the hadronic calorimeter layers is at the level of 4%. The determination of the global energy scale was performed in the hadronic calorimeter with an uncertainty of ±4%.
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http://hal.in2p3.fr/in2p3-00596919
Contributor : Jeanine Pellet <>
Submitted on : Monday, May 30, 2011 - 3:21:07 PM
Last modification on : Thursday, January 11, 2018 - 6:14:05 AM
Long-term archiving on: : Wednesday, August 31, 2011 - 2:25:14 AM

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  • HAL Id : in2p3-00596919, version 1

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C. Santoni. Performance of the ATLAS Calorimeters using Cosmic Ray Muons. Kruger2010 - Workshop on Discovery Physics at the LHC, Dec 2010, Nelspruit, South Africa. 6 p. ⟨in2p3-00596919⟩

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