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Search for a Three Lepton and Missing Transverse Energy Signature of Supersymmetry Using a Multivariate Analysis
A search for evidence of supersymmetry with a three lepton and missing transverse energy signature is presented. This signature is a possible final state from the associated production of a chargino and a neutralino, two particles predicted by supersymmetry. The study is performed on 2:06 fb-1 of 7...
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Lenguaje: | eng |
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2013
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Acceso en línea: | http://cds.cern.ch/record/1604222 |
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author | Lampen, Caleb |
author_facet | Lampen, Caleb |
author_sort | Lampen, Caleb |
collection | CERN |
description | A search for evidence of supersymmetry with a three lepton and missing transverse energy signature is presented. This signature is a possible final state from the associated production of a chargino and a neutralino, two particles predicted by supersymmetry. The study is performed on 2:06 fb-1 of 7 TeV center of mass energy proton-proton collisions, recorded with the ATLAS experiment at the Large Hadron Collider in 2011. A multivariate analysis is utilized, implementing a boosted decision tree classi- er using lepton pT , missing transverse energy, dilepton mass, and the razor variable R as inputs. No significant excess over the Standard Model prediction is observed, and upper limits are placed on the cross section times branching ratio of simplifiied models across a mass parameter space. |
id | cern-1604222 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2013 |
record_format | invenio |
spelling | cern-16042222019-09-30T06:29:59Zhttp://cds.cern.ch/record/1604222engLampen, CalebSearch for a Three Lepton and Missing Transverse Energy Signature of Supersymmetry Using a Multivariate AnalysisParticle Physics - ExperimentA search for evidence of supersymmetry with a three lepton and missing transverse energy signature is presented. This signature is a possible final state from the associated production of a chargino and a neutralino, two particles predicted by supersymmetry. The study is performed on 2:06 fb-1 of 7 TeV center of mass energy proton-proton collisions, recorded with the ATLAS experiment at the Large Hadron Collider in 2011. A multivariate analysis is utilized, implementing a boosted decision tree classi- er using lepton pT , missing transverse energy, dilepton mass, and the razor variable R as inputs. No significant excess over the Standard Model prediction is observed, and upper limits are placed on the cross section times branching ratio of simplifiied models across a mass parameter space.CERN-THESIS-2013-139oai:cds.cern.ch:16042222013-09-27T20:56:30Z |
spellingShingle | Particle Physics - Experiment Lampen, Caleb Search for a Three Lepton and Missing Transverse Energy Signature of Supersymmetry Using a Multivariate Analysis |
title | Search for a Three Lepton and Missing Transverse Energy Signature of Supersymmetry Using a Multivariate Analysis |
title_full | Search for a Three Lepton and Missing Transverse Energy Signature of Supersymmetry Using a Multivariate Analysis |
title_fullStr | Search for a Three Lepton and Missing Transverse Energy Signature of Supersymmetry Using a Multivariate Analysis |
title_full_unstemmed | Search for a Three Lepton and Missing Transverse Energy Signature of Supersymmetry Using a Multivariate Analysis |
title_short | Search for a Three Lepton and Missing Transverse Energy Signature of Supersymmetry Using a Multivariate Analysis |
title_sort | search for a three lepton and missing transverse energy signature of supersymmetry using a multivariate analysis |
topic | Particle Physics - Experiment |
url | http://cds.cern.ch/record/1604222 |
work_keys_str_mv | AT lampencaleb searchforathreeleptonandmissingtransverseenergysignatureofsupersymmetryusingamultivariateanalysis |