Enhancement in the double Higgs boson production by e+ e− annihilation and physics beyond the standard model.

Detalhes bibliográficos
Autor(a) principal: Vásquez Tocora, Andrés Felipe
Data de Publicação: 2018
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://hdl.handle.net/11449/157221
Resumo: The main goal of this dissertation is to show the enhancement of the cross-section for the double Higgs production through pair annihilation by including effective interactions and through the non-perturbative Sommerfeld effect. Bounds to some Wilson coefficients were obtained from such enhancement, this in the scenarios of the future e+ e− -colliders (FCC-ee, ILC, CLIC). In order to achieve this, some computational tools were implemented: FeynRules, FeynArts, FormCalc, and LoopTools. It is also shown the enhancement of the double Higgs production in 2HDM and MSSM, discussing the general framework of these two models. In addition, it is studied the threshold behavior of the cross-section for the double Higgs production when a hidden sector couples to the Higgs boson, yielding resonances below the threshold energy due to non-perturbative effects. We study the Sommerfeld effect in the double Higgs production in the scenario of e+ e− -colliders. The enhancement is discussed as generated from a hidden sector coupled to the Higgs boson. Below and above threshold enhancements are presented. Such analysis is of importance in the ILC project, which will operate up to the threshold energy √s = 250 GeV. The results has been achieved by the use of computational tools like FeynArts, FormCalc, and LoopTools.
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spelling Enhancement in the double Higgs boson production by e+ e− annihilation and physics beyond the standard model.Aprimoramento na produção em dobro de bóson de Higgs por aniquilação de e+ e− e física além do modelo padrão.Higgs boson productionSommerfeld effectBeyond the standard modelEffective field theoryThe main goal of this dissertation is to show the enhancement of the cross-section for the double Higgs production through pair annihilation by including effective interactions and through the non-perturbative Sommerfeld effect. Bounds to some Wilson coefficients were obtained from such enhancement, this in the scenarios of the future e+ e− -colliders (FCC-ee, ILC, CLIC). In order to achieve this, some computational tools were implemented: FeynRules, FeynArts, FormCalc, and LoopTools. It is also shown the enhancement of the double Higgs production in 2HDM and MSSM, discussing the general framework of these two models. In addition, it is studied the threshold behavior of the cross-section for the double Higgs production when a hidden sector couples to the Higgs boson, yielding resonances below the threshold energy due to non-perturbative effects. We study the Sommerfeld effect in the double Higgs production in the scenario of e+ e− -colliders. The enhancement is discussed as generated from a hidden sector coupled to the Higgs boson. Below and above threshold enhancements are presented. Such analysis is of importance in the ILC project, which will operate up to the threshold energy √s = 250 GeV. The results has been achieved by the use of computational tools like FeynArts, FormCalc, and LoopTools.O objetivo principal dessa dissertação é, mostrar o aprimoramento da seção de choque para a produção em dobro dos bósons de Higgs, por meio de aniquilação de pares, incluindo interações efetivas e através do efeito não perturbativo de Sommerfeld. De tais aprimoramentos, os limites para alguns coeficientes de Wilson foram obtidos, isso nos cenários de futuros aceleradores de e+e- (FCC-ee, ILC, CLIC). Para atingir estes resultados, algumas ferramentas computacionais foram implementadas: FeynRules, FeynArts, FormCalc e LoopTools. Também, é mostrado o aprimoramento da produção em dobro de bósons de Higgs no “2HDM” e “MSSM”, discutindo o marco geral desses dois modelos. Além disso, foi estudado o comportamento, perto do limite de produção, da seção de choque da produção em dobro dos bósons de Higgs, quando um setor escondido é acoplado ao Higgs, produzindo ressonâncias abaixo da energia limite de produção, devido à efeitos não perturbativos.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Universidade Estadual Paulista (Unesp)Rosenfeld, Rogério [UNESP]Tonero, AlbertoUniversidade Estadual Paulista (Unesp)Vásquez Tocora, Andrés Felipe2018-10-03T17:32:51Z2018-10-03T17:32:51Z2018-03-29info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/11449/15722100090864633015015001P7enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESP2024-01-07T06:28:07Zoai:repositorio.unesp.br:11449/157221Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:21:28.336543Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Enhancement in the double Higgs boson production by e+ e− annihilation and physics beyond the standard model.
Aprimoramento na produção em dobro de bóson de Higgs por aniquilação de e+ e− e física além do modelo padrão.
title Enhancement in the double Higgs boson production by e+ e− annihilation and physics beyond the standard model.
spellingShingle Enhancement in the double Higgs boson production by e+ e− annihilation and physics beyond the standard model.
Vásquez Tocora, Andrés Felipe
Higgs boson production
Sommerfeld effect
Beyond the standard model
Effective field theory
title_short Enhancement in the double Higgs boson production by e+ e− annihilation and physics beyond the standard model.
title_full Enhancement in the double Higgs boson production by e+ e− annihilation and physics beyond the standard model.
title_fullStr Enhancement in the double Higgs boson production by e+ e− annihilation and physics beyond the standard model.
title_full_unstemmed Enhancement in the double Higgs boson production by e+ e− annihilation and physics beyond the standard model.
title_sort Enhancement in the double Higgs boson production by e+ e− annihilation and physics beyond the standard model.
author Vásquez Tocora, Andrés Felipe
author_facet Vásquez Tocora, Andrés Felipe
author_role author
dc.contributor.none.fl_str_mv Rosenfeld, Rogério [UNESP]
Tonero, Alberto
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Vásquez Tocora, Andrés Felipe
dc.subject.por.fl_str_mv Higgs boson production
Sommerfeld effect
Beyond the standard model
Effective field theory
topic Higgs boson production
Sommerfeld effect
Beyond the standard model
Effective field theory
description The main goal of this dissertation is to show the enhancement of the cross-section for the double Higgs production through pair annihilation by including effective interactions and through the non-perturbative Sommerfeld effect. Bounds to some Wilson coefficients were obtained from such enhancement, this in the scenarios of the future e+ e− -colliders (FCC-ee, ILC, CLIC). In order to achieve this, some computational tools were implemented: FeynRules, FeynArts, FormCalc, and LoopTools. It is also shown the enhancement of the double Higgs production in 2HDM and MSSM, discussing the general framework of these two models. In addition, it is studied the threshold behavior of the cross-section for the double Higgs production when a hidden sector couples to the Higgs boson, yielding resonances below the threshold energy due to non-perturbative effects. We study the Sommerfeld effect in the double Higgs production in the scenario of e+ e− -colliders. The enhancement is discussed as generated from a hidden sector coupled to the Higgs boson. Below and above threshold enhancements are presented. Such analysis is of importance in the ILC project, which will operate up to the threshold energy √s = 250 GeV. The results has been achieved by the use of computational tools like FeynArts, FormCalc, and LoopTools.
publishDate 2018
dc.date.none.fl_str_mv 2018-10-03T17:32:51Z
2018-10-03T17:32:51Z
2018-03-29
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/11449/157221
000908646
33015015001P7
url http://hdl.handle.net/11449/157221
identifier_str_mv 000908646
33015015001P7
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Estadual Paulista (Unesp)
publisher.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.source.none.fl_str_mv reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808129419637686272

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