Geração de massa para neutrinos ativos na presença de 1 ou 2 neutrinos estéreis

• Ano de defesa: 2007
• Autor(a) principal: Machado, A. C. B [UNESP]
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Estadual Paulista (Unesp)
• Palavras-chave em Português: Neutrinos; Neutrinos - Massa
• Link de acesso: http://hdl.handle.net/11449/138364; http://www.athena.biblioteca.unesp.br/exlibris/bd/cathedra/11-04-2016/000855780.pdf

This work presents a study on the changes we have done in the Standard Model (SM), adding mass to neutrinos, in order to observe the alterations these changes may cause to the whole Electroweak Standard Model (ESM). Therefore, the main idea of this study is to get mass matrices by introducing one or two sterile neutrinos in the ESM mater content and mechanisms to generate Majorana mater to ESM' s active neutrinos, such as, radioactive corrections, the dimension five operator, and the scalar triplet. The final models, and therefore the mass matrices, come from the possible combinations between the studied mechanisms