Single isolated hadron response and determination of the jet energy scale uncertainty with the ATLAS detector

The response of single isolated hadrons in the ATLAS calorimeter is measured in proton-proton collisions at a centre-of-mass energy of 7 TeV at the LHC. Isolated tracks with a momentum between 0.5 to 10-20 GeV are selected in the rapidity region up to 2.3. Adjacent energy deposits collected in calor...

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Autor principal: Vivarelli, I
Lenguaje:eng
Publicado: 2010
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/1290108
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author Vivarelli, I
author_facet Vivarelli, I
author_sort Vivarelli, I
collection CERN
description The response of single isolated hadrons in the ATLAS calorimeter is measured in proton-proton collisions at a centre-of-mass energy of 7 TeV at the LHC. Isolated tracks with a momentum between 0.5 to 10-20 GeV are selected in the rapidity region up to 2.3. Adjacent energy deposits collected in calorimeter clusters are summed together in a cone of size R=0.2. The measured calorimeter cluster energy sum is compared to the track momentum. Data are in compared in detail to Monte Carlo simulation based on the Geant4 tool-kit and to test-beam measurements. The response to hadrons at low momenta is described by the Monte Carlo simulation with an accuracy of a few percent. Together with test-beam data the results of the single isolated hadron analysis can be used to get a first estimate of the jet energy scale uncertainty in the ATLAS detector.
id cern-1290108
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2010
record_format invenio
spelling cern-12901082019-09-30T06:29:59Zhttp://cds.cern.ch/record/1290108engVivarelli, ISingle isolated hadron response and determination of the jet energy scale uncertainty with the ATLAS detectorDetectors and Experimental TechniquesThe response of single isolated hadrons in the ATLAS calorimeter is measured in proton-proton collisions at a centre-of-mass energy of 7 TeV at the LHC. Isolated tracks with a momentum between 0.5 to 10-20 GeV are selected in the rapidity region up to 2.3. Adjacent energy deposits collected in calorimeter clusters are summed together in a cone of size R=0.2. The measured calorimeter cluster energy sum is compared to the track momentum. Data are in compared in detail to Monte Carlo simulation based on the Geant4 tool-kit and to test-beam measurements. The response to hadrons at low momenta is described by the Monte Carlo simulation with an accuracy of a few percent. Together with test-beam data the results of the single isolated hadron analysis can be used to get a first estimate of the jet energy scale uncertainty in the ATLAS detector.ATL-PHYS-SLIDE-2010-274oai:cds.cern.ch:12901082010-09-08
spellingShingle Detectors and Experimental Techniques
Vivarelli, I
Single isolated hadron response and determination of the jet energy scale uncertainty with the ATLAS detector
title Single isolated hadron response and determination of the jet energy scale uncertainty with the ATLAS detector
title_full Single isolated hadron response and determination of the jet energy scale uncertainty with the ATLAS detector
title_fullStr Single isolated hadron response and determination of the jet energy scale uncertainty with the ATLAS detector
title_full_unstemmed Single isolated hadron response and determination of the jet energy scale uncertainty with the ATLAS detector
title_short Single isolated hadron response and determination of the jet energy scale uncertainty with the ATLAS detector
title_sort single isolated hadron response and determination of the jet energy scale uncertainty with the atlas detector
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/1290108
work_keys_str_mv AT vivarellii singleisolatedhadronresponseanddeterminationofthejetenergyscaleuncertaintywiththeatlasdetector

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