Performance of the Jet Energy Calibration at ATLAS using pT Balance in Z + Jet Events

A precision measurement of the jet energy scale is essential for the success of the ATLAS experiment. This thesis investigates the suitability of pT balancing in Z + Jet events as an in situ technique for assessing the performance of the jet energy calibration. While the technique is shown to have a...

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Detalles Bibliográficos
Autor principal: Watson, Peter
Lenguaje:eng
Publicado: McGill U. 2010
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/1390814
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author Watson, Peter
author_facet Watson, Peter
author_sort Watson, Peter
collection CERN
description A precision measurement of the jet energy scale is essential for the success of the ATLAS experiment. This thesis investigates the suitability of pT balancing in Z + Jet events as an in situ technique for assessing the performance of the jet energy calibration. While the technique is shown to have a kinematic bias in the region pT_Z < 60 GeV/c, it is useful for studying jet performance at higher pT_Z . The effects of background processes and signal selection criteria on the pT balance are studied. This study also investigates the performance of jet reconstruction with various jet input constituents, jet algorithms and sizes, and jet calibration schemes.
id cern-1390814
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2010
publisher McGill U.
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spelling cern-13908142019-09-30T06:29:59Zhttp://cds.cern.ch/record/1390814engWatson, PeterPerformance of the Jet Energy Calibration at ATLAS using pT Balance in Z + Jet EventsParticle Physics - ExperimentA precision measurement of the jet energy scale is essential for the success of the ATLAS experiment. This thesis investigates the suitability of pT balancing in Z + Jet events as an in situ technique for assessing the performance of the jet energy calibration. While the technique is shown to have a kinematic bias in the region pT_Z < 60 GeV/c, it is useful for studying jet performance at higher pT_Z . The effects of background processes and signal selection criteria on the pT balance are studied. This study also investigates the performance of jet reconstruction with various jet input constituents, jet algorithms and sizes, and jet calibration schemes.McGill U.CERN-THESIS-2010-244oai:cds.cern.ch:13908142010
spellingShingle Particle Physics - Experiment
Watson, Peter
Performance of the Jet Energy Calibration at ATLAS using pT Balance in Z + Jet Events
title Performance of the Jet Energy Calibration at ATLAS using pT Balance in Z + Jet Events
title_full Performance of the Jet Energy Calibration at ATLAS using pT Balance in Z + Jet Events
title_fullStr Performance of the Jet Energy Calibration at ATLAS using pT Balance in Z + Jet Events
title_full_unstemmed Performance of the Jet Energy Calibration at ATLAS using pT Balance in Z + Jet Events
title_short Performance of the Jet Energy Calibration at ATLAS using pT Balance in Z + Jet Events
title_sort performance of the jet energy calibration at atlas using pt balance in z + jet events
topic Particle Physics - Experiment
url http://cds.cern.ch/record/1390814
work_keys_str_mv AT watsonpeter performanceofthejetenergycalibrationatatlasusingptbalanceinzjetevents

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