Investigating the Sources of Mismeasured Missing Transverse Energy in Simulated Z + 1 jet dilepton decays

We investigate the sources of mismeasured Missing Transverse Energy (MET) in ATLAS Run II Monte Carlo (MC) simulations, specifically looking at events in the tail of the MET distribution where the reconstructed MET is often significantly greater than the truth MET of the simulation. We find the inc...

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Detalles Bibliográficos
Autor principal: Teoh, James
Lenguaje:eng
Publicado: 2016
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/2216282
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author Teoh, James
author_facet Teoh, James
author_sort Teoh, James
collection CERN
description We investigate the sources of mismeasured Missing Transverse Energy (MET) in ATLAS Run II Monte Carlo (MC) simulations, specifically looking at events in the tail of the MET distribution where the reconstructed MET is often significantly greater than the truth MET of the simulation. We find the inclusion of jets not associated with the hard physics vertex (pile-up jets) in the MET to be the main cause of mismeasured MET in the tails of Z + jets events and propose a cut using the Jet Tracker Vertex variable (JVT) to remove these jets.
id cern-2216282
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2016
record_format invenio
spelling cern-22162822019-09-30T06:29:59Zhttp://cds.cern.ch/record/2216282engTeoh, JamesInvestigating the Sources of Mismeasured Missing Transverse Energy in Simulated Z + 1 jet dilepton decaysParticle Physics - ExperimentWe investigate the sources of mismeasured Missing Transverse Energy (MET) in ATLAS Run II Monte Carlo (MC) simulations, specifically looking at events in the tail of the MET distribution where the reconstructed MET is often significantly greater than the truth MET of the simulation. We find the inclusion of jets not associated with the hard physics vertex (pile-up jets) in the MET to be the main cause of mismeasured MET in the tails of Z + jets events and propose a cut using the Jet Tracker Vertex variable (JVT) to remove these jets.CERN-STUDENTS-Note-2016-221oai:cds.cern.ch:22162822016-09-16
spellingShingle Particle Physics - Experiment
Teoh, James
Investigating the Sources of Mismeasured Missing Transverse Energy in Simulated Z + 1 jet dilepton decays
title Investigating the Sources of Mismeasured Missing Transverse Energy in Simulated Z + 1 jet dilepton decays
title_full Investigating the Sources of Mismeasured Missing Transverse Energy in Simulated Z + 1 jet dilepton decays
title_fullStr Investigating the Sources of Mismeasured Missing Transverse Energy in Simulated Z + 1 jet dilepton decays
title_full_unstemmed Investigating the Sources of Mismeasured Missing Transverse Energy in Simulated Z + 1 jet dilepton decays
title_short Investigating the Sources of Mismeasured Missing Transverse Energy in Simulated Z + 1 jet dilepton decays
title_sort investigating the sources of mismeasured missing transverse energy in simulated z + 1 jet dilepton decays
topic Particle Physics - Experiment
url http://cds.cern.ch/record/2216282
work_keys_str_mv AT teohjames investigatingthesourcesofmismeasuredmissingtransverseenergyinsimulatedz1jetdileptondecays

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