Cargando…

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...

Descripción completa

Detalles Bibliográficos
Autor principal: Lampen, Caleb
Lenguaje:eng
Publicado: 2013
Materias:
Acceso en línea:http://cds.cern.ch/record/1604222
_version_ 1780931592876720128
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