2022-02-022021-02-24ESQUIA, Juan Carlos Sumire. Stueckelberg a la Utiyama. 2021. 78 f. Dissertação (Mestrado em Física) - Universidade Federal de Alfenas, Poços de Caldas, MG, 2021.https://repositorio.unifal-mg.edu.br/handle/123456789/1933Utiyama's formalism allows a deductive study of the equations of motion for the classical fields, their interaction with the fields of matter and the conservation currents that is consequences of maintaining the invariance of gauge transformations (UTIYAMA, 1956). The main consequence of maintaining this invariance even at the local level is: gauge potentials don't admit terms of mass in their Lagrangians. In this master's work, we intend to study the possibility of Utiyama's formalism being extended to include massive A_μ^a gauge potentials, maintaining the local gauge invariance with the help of a field additional a la Stueckelberg. Thus, we will be guided by the Stueckelberg theory, a mechanism that introduces a massive scalar field B for the case of the group U(1) (RUEGG; RUIZ-ALTABA, 2004) and a massive vector field ω_μ for the case of the group SU(2), whose transformation law (group U(1)) carries the mass parameter m; this mass is then transferred to A_μ.application/pdfAcesso Abertohttp://creativecommons.org/licenses/by-nc-nd/4.0/Física.Campos de calibre (Física).Campos vetoriais.FISICA DAS PARTICULAS ELEMENTARES E CAMPOS::TEORIA GERAL DE PARTICULAS E CAMPOSDissertaçãoCuzinatto, Rodrigo Rocha