Study of the electron → photon misidentification rate in the ATLAS detector

In this thesis, the misidentification of electrons as photons (fake rate) is investigated using the first 7 TeV data of the ATLAS detector at the CERN Large Hadron Collider. A method for the measurement of the fake rate in data, using pure electrons from the Z0 → e+e− decay, called tag-and-probe, is...

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Detalles Bibliográficos
Autor principal: Haase, Johannes
Lenguaje:eng
Publicado: 2017
Materias:
Particle Physics - Experiment
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/2283104
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author Haase, Johannes
author_facet Haase, Johannes
author_sort Haase, Johannes
collection CERN
description In this thesis, the misidentification of electrons as photons (fake rate) is investigated using the first 7 TeV data of the ATLAS detector at the CERN Large Hadron Collider. A method for the measurement of the fake rate in data, using pure electrons from the Z0 → e+e− decay, called tag-and-probe, is presented. The results are studied as functions of kinematic variables in order to show effects on the detector performance. A cross check with a so-called truth-matching method in Monte Carlo is applied. In addition, the fake rate for Gauge Mediated Supersymmetry Breaking events is estimated and compared with Z0 → e+e− studies.
id oai-inspirehep.net-1343450
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2017
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spelling oai-inspirehep.net-13434502019-09-30T06:29:59Zhttp://cds.cern.ch/record/2283104engHaase, JohannesStudy of the electron → photon misidentification rate in the ATLAS detectorParticle Physics - ExperimentDetectors and Experimental TechniquesIn this thesis, the misidentification of electrons as photons (fake rate) is investigated using the first 7 TeV data of the ATLAS detector at the CERN Large Hadron Collider. A method for the measurement of the fake rate in data, using pure electrons from the Z0 → e+e− decay, called tag-and-probe, is presented. The results are studied as functions of kinematic variables in order to show effects on the detector performance. A cross check with a so-called truth-matching method in Monte Carlo is applied. In addition, the fake rate for Gauge Mediated Supersymmetry Breaking events is estimated and compared with Z0 → e+e− studies.CERN-THESIS-2011-400oai:inspirehep.net:13434502017-09-12T05:06:19Z
spellingShingle Particle Physics - Experiment
Detectors and Experimental Techniques
Haase, Johannes
Study of the electron → photon misidentification rate in the ATLAS detector
title Study of the electron → photon misidentification rate in the ATLAS detector
title_full Study of the electron → photon misidentification rate in the ATLAS detector
title_fullStr Study of the electron → photon misidentification rate in the ATLAS detector
title_full_unstemmed Study of the electron → photon misidentification rate in the ATLAS detector
title_short Study of the electron → photon misidentification rate in the ATLAS detector
title_sort study of the electron → photon misidentification rate in the atlas detector
topic Particle Physics - Experiment
Detectors and Experimental Techniques
url http://cds.cern.ch/record/2283104
work_keys_str_mv AT haasejohannes studyoftheelectronphotonmisidentificationrateintheatlasdetector

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