Queiroz, Farinaldo da SilvaFarias, Mickael Victhor Santos de2025-01-202025-01-202025-01-10FARIAS, Mickael Victhor de. Setor eletrofraco: estruturas e invariância de calibre no modelo padrão. Orientador: Farinaldo da Silva Queiroz. 2025. 55 f. Trabalho de Conclusão de Curso (Bacharelado em Física) - Departamento de Física Teórica e Experimental, Universidade Federal do Rio Grande do Norte, Natal, 2025.https://repositorio.ufrn.br/handle/123456789/61340The electroweak sector of the Standard Model of Particle Physics is an example of a theory which is widely tested in an variety of energy scales, and its theorical formulation included the existence of particles that we know nowadays, such as the Higgs boson and the weak bosons. The model describes particle field dynamics through lagrangian densities and predicts the existence of particle coupling through interaction terms. This work describes the electroweak sector in the Standard Model, firstly discussing about its formalism and the theory constituints, and after this, introducing Spontaneous Symmetry Breaking process. At last, the left-handed lepton symmetry group is introduced, an then how the Higgs Mechanism gives mass to some of the constituints.Attribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/Modelo PadrãoInvariância de gaugeSetor eletrofracoMecanismo de HiggsLagrangianaStandard ModelGauge InvarianceElectroweak SectorHiggs MechanismLagrangianbachelorThesisCNPQ::CIENCIAS EXATAS E DA TERRA