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Article
Report number arXiv:1607.08842 ; CERN-EP-2016-149
Title 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
Related titleA 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
Author(s) ATLAS Collaboration  Показване на всичките 2855 автора
Publication 2017-01-13
Imprint 29 Jul 2016
Number of pages 65
Note 47 pages plus author list + cover pages (65 pages total), 38 figures, 1 table, published in Eur. Phys. J. C, All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/PERF-2015-05
In: Eur. Phys. J. C 77, 1 (2017) pp.26
DOI 10.1140/epjc/s10052-016-4580-0
10.1140/epjc/s10052-016-4580-0
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; ATLAS
Free keywords detector ; calorimeter ; experimental results
Abstract A measurement of the calorimeter response to isolated charged hadrons in the ATLAS detector at the LHC is presented. This measurement is performed with 3.2 nb1 of proton--proton collision data at s=7 TeV from 2010 and 0.1 nb1 of data at s=8 TeV from 2012. A number of aspects of the calorimeter response to isolated hadrons are explored. After accounting for energy deposited by neutral particles, there is a 5\% discrepancy in the modelling, using Geant4 physics lists, of the calorimeter response to isolated charged hadrons in the central calorimeter region. The description of the response to anti-protons at low momenta is found to be improved with respect to previous analyses. The electromagnetic and hadronic calorimeters are also examined separately, and the detector simulation is found to describe the response in the hadronic calorimeter well. The jet energy scale uncertainty and correlations in scale between jets of different momenta are derived based on these studies. The uncertainty is 2-5\% for jets with transverse momenta above 2 TeV, where this method provides the jet energy scale uncertainty for ATLAS.
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Copyright/License preprint: © 2016-2025 CERN (License: CC-BY-4.0)
publication: © 2017-2025 CERN (License: CC-BY-4.0)



Corresponding record in: Inspire
Email contact: fmalek@lpsc.in2p3.fr


 Записът е създаден на 2016-07-29, последна промяна на 2024-06-29


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