Boosted Higgs to bb𝛕𝛕 identification in Di-Higgs events at the ATLAS experiment

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dc.contributor.advisorSandoval Usme, Carlos Eduardo
dc.contributor.authorGarcia Ruiz, Miguel Angel
dc.contributor.researchgroupGrupo de Partículas Fenyx-Un
dc.date.accessioned2026-01-27T17:31:48Z
dc.date.available2026-01-27T17:31:48Z
dc.date.issued2025
dc.descriptionIlustraciones, gráficosspa
dc.description.abstractThis thesis presents a study of Higgs boson pair production in the HH → bb𝛕𝛕 decay channel, with a particular focus on the boosted regime, where the Higgs bosons are produced with high transverse momentum (pT ). In such scenarios, the decay products of each Higgs boson become highly collimated, resulting in the formation of boosted jets. Several techniques are explored to identify these boosted jets, varying from methods based on simulated and reconstructed jet information to the use of multivariate algorithms—specifically Boosted Decision Trees (BDTs). Both qualitative and quantitative evaluations are provided for each identification strategy, enabling a performance comparison among the implemented methods for boosted bb𝛕𝛕 events. Additionally, this thesis includes results from the qualification task conducted within the ATLAS experiment, which focused on the third release of datasets for the ATLAS Open Data project. A summary of the main contributions to the qualification task, along with key results, is also presented.eng
dc.description.abstractEsta tesis presenta un estudio de la producción de pares de bosones de Higgs en el canal de desintegración HH → bb𝛕𝛕, con un enfoque particular en el régimen boosted, donde los bosones de Higgs se producen con un alto momento transverso (pT). En estos escenarios, los productos de la desintegración de cada bosón de Higgs se encuentran altamente colimados, lo que da lugar a la formación de jets boosted. Se exploran diversas técnicas para identificar estos jets boosted, que van desde métodos basados en la información de la simulación y reconstrucción de jets hasta el uso de algoritmos multivariados - en particular, Boosted Decision Trees (BDTs). Se presentan evaluaciones tanto cualitativas como cuantitativas para cada estrategia de identificación, lo que permite comparar el rendimiento de los diferentes métodos implementados para eventos bb𝛕𝛕 en el régimen boosted. Adicionalmente, esta tesis incluye los resultados obtenidos durante el qualification task realizado en el experimento ATLAS, enfocado en la tercera entrega de conjuntos de datos del proyecto ATLAS Open Data. También se presenta un resumen de las principales contribuciones al qualification task, junto con los resultados más relevantes obtenidos. (Texto tomado de la fuente)spa
dc.description.degreelevelMaestría
dc.description.degreenameMagíster en Ciencias - Física
dc.description.researchareaExperimental Particle Physics
dc.format.extentxiii, 138 páginas
dc.format.mimetypeapplication/pdf
dc.identifier.instnameUniversidad Nacional de Colombiaspa
dc.identifier.reponameRepositorio Institucional Universidad Nacional de Colombiaspa
dc.identifier.repourlhttps://repositorio.unal.edu.co/spa
dc.identifier.urihttps://repositorio.unal.edu.co/handle/unal/89333
dc.language.isoeng
dc.publisherUniversidad Nacional de Colombia
dc.publisher.branchUniversidad Nacional de Colombia - Sede Bogotá
dc.publisher.facultyFacultad de Ciencias
dc.publisher.placeBogotá, Colombia
dc.publisher.programBogotá - Ciencias - Maestría en Ciencias - Física
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dc.rights.accessrightsinfo:eu-repo/semantics/openAccess
dc.rights.licenseReconocimiento 4.0 Internacional
dc.subject.blaaAtlas open data (Plataforma)
dc.subject.blaaFísica de altas energías
dc.subject.blaaBosón de Higgs
dc.subject.bnePartículas (Física nuclear)
dc.subject.ddc530 - Física
dc.subject.proposalDi-Higgs productioneng
dc.subject.proposalBoosted jetseng
dc.subject.proposalHigh energy regimeeng
dc.subject.proposalROOTeng
dc.subject.proposalMachine learning techniqueseng
dc.subject.proposalATLAS open dataeng
dc.subject.proposalProducción de di-Higgsspa
dc.subject.proposalJets boostedspa
dc.subject.proposalRégimen de altas energı́asspa
dc.subject.proposalROOTspa
dc.subject.proposalTécnicas de machine learningspa
dc.subject.proposalDatos abiertos del experimento ATLASspa
dc.subject.wikidataRooteng
dc.subject.wikidataMachine learning techniqueeng
dc.subject.wikidataHiggs bosoneng
dc.subject.wikidataBosón de Higgsspa
dc.titleBoosted Higgs to bb𝛕𝛕 identification in Di-Higgs events at the ATLAS experimenteng
dc.title.translatedIdentificación de Higgs potenciados a bb𝛕𝛕 en eventos de di-Higgs en el experimento ATLASspa
dc.typeTrabajo de grado - Maestría
dc.type.coarhttp://purl.org/coar/resource_type/c_bdcc
dc.type.coarversionhttp://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.contentText
dc.type.driverinfo:eu-repo/semantics/masterThesis
dc.type.redcolhttp://purl.org/redcol/resource_type/TM
dc.type.versioninfo:eu-repo/semantics/acceptedVersion
dcterms.audience.professionaldevelopmentBibliotecarios
dcterms.audience.professionaldevelopmentEstudiantes
dcterms.audience.professionaldevelopmentInvestigadores
dcterms.audience.professionaldevelopmentMaestros
dcterms.audience.professionaldevelopmentPúblico general
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Maestría en Ciencias - Física