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Estimation of high-pT Jet Energy Scale Uncertainty from single hadron response with the ATLAS detector

The jet energy scale (JES) uncertainty is estimated using different methods at different pT ranges. In situ techniques exploiting the pT balance between a jet and a reference object (e.g. Z or gamma) are used at lower pT, but at very high pT (> 2.5 TeV) there is not enough statistics for in-situ...

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Autor principal: Poulsen, Trine
Lenguaje:eng
Publicado: 2016
Materias:
Acceso en línea:http://cds.cern.ch/record/2194237
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author Poulsen, Trine
author_facet Poulsen, Trine
author_sort Poulsen, Trine
collection CERN
description The jet energy scale (JES) uncertainty is estimated using different methods at different pT ranges. In situ techniques exploiting the pT balance between a jet and a reference object (e.g. Z or gamma) are used at lower pT, but at very high pT (> 2.5 TeV) there is not enough statistics for in-situ techniques. The JES uncertainty at high-pT is important in several searches for new phenomena, e.g. the dijet resonance and angular searches. In the highest pT range, the JES uncertainty is estimated using the calorimeter response to single hadrons. In this method, jets are treated as a superposition of energy depositions of single particles. An uncertainty is applied to each energy depositions belonging to the particles within the jet, and propagated to the final jet energy scale. This poster presents the JES uncertainty found with this method at sqrt(s) = 8 TeV and its developments.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2016
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spelling cern-21942372019-09-30T06:29:59Zhttp://cds.cern.ch/record/2194237engPoulsen, TrineEstimation of high-pT Jet Energy Scale Uncertainty from single hadron response with the ATLAS detectorParticle Physics - ExperimentThe jet energy scale (JES) uncertainty is estimated using different methods at different pT ranges. In situ techniques exploiting the pT balance between a jet and a reference object (e.g. Z or gamma) are used at lower pT, but at very high pT (> 2.5 TeV) there is not enough statistics for in-situ techniques. The JES uncertainty at high-pT is important in several searches for new phenomena, e.g. the dijet resonance and angular searches. In the highest pT range, the JES uncertainty is estimated using the calorimeter response to single hadrons. In this method, jets are treated as a superposition of energy depositions of single particles. An uncertainty is applied to each energy depositions belonging to the particles within the jet, and propagated to the final jet energy scale. This poster presents the JES uncertainty found with this method at sqrt(s) = 8 TeV and its developments.ATL-PHYS-SLIDE-2016-363oai:cds.cern.ch:21942372016-06-24
spellingShingle Particle Physics - Experiment
Poulsen, Trine
Estimation of high-pT Jet Energy Scale Uncertainty from single hadron response with the ATLAS detector
title Estimation of high-pT Jet Energy Scale Uncertainty from single hadron response with the ATLAS detector
title_full Estimation of high-pT Jet Energy Scale Uncertainty from single hadron response with the ATLAS detector
title_fullStr Estimation of high-pT Jet Energy Scale Uncertainty from single hadron response with the ATLAS detector
title_full_unstemmed Estimation of high-pT Jet Energy Scale Uncertainty from single hadron response with the ATLAS detector
title_short Estimation of high-pT Jet Energy Scale Uncertainty from single hadron response with the ATLAS detector
title_sort estimation of high-pt jet energy scale uncertainty from single hadron response with the atlas detector
topic Particle Physics - Experiment
url http://cds.cern.ch/record/2194237
work_keys_str_mv AT poulsentrine estimationofhighptjetenergyscaleuncertaintyfromsinglehadronresponsewiththeatlasdetector