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Master's Dissertation
DOI
https://doi.org/10.11606/D.43.2011.tde-26042012-150255
Document
Author
Full name
Nayara Fonseca de Sá
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2011
Supervisor
Committee
Burdman, Gustavo Alberto (President)
Dias, Alex Gomes
Eboli, Oscar Jose Pinto
Title in Portuguese
Desconstrução dimensional e violação de sabor
Keywords in Portuguese
Desconstrução
Violação de sabor
Abstract in Portuguese
O Modelo Padrão das partículas elementares descreve com sucesso as interações eletrofracas e fortes, mostrando-se consistente com os dados experimentais disponíveis. Entretanto, há diversas questões que não são respondidas pelo mesmo, entre elas, o problema da hierarquia de gauge e o problema associado à origem das massas dos férmions. Ambos podem ser solucionados de forma natural em teorias com uma dimensão extra curva. No entanto, essas teorias violam sabor em primeira ordem de teoria de perturbações e são não renormalizáveis. Nesta dissertação utilizamos técnicas de desconstrução dimensional para resolver os problemas da hierarquia de gauge e da hierarquia de massas dos férmions com mínima violação de sabor em um modelo puramente quadridimensional.
Title in English
Dimensional desconstruction and flavor violation
Keywords in English
Desconstruction
Flavor violation
Abstract in English
The Standard Model of elementary particles describes the electroweak and strong interactions, and its predictions have successfully matched existing experimental data. However, there are some issues that are not addressed by this model, such as the gauge hierarchy problem and the origin of fermion masses. Both problems can be solved naturally using Warped Extra Dimensions. On the other hand, these theories are flavor-violating in tree level and are non-renormalizable. In this dissertation we apply dimensional deconstruction techniques to solve the gauge hierarchy problem and the fermion masses hierarchy problem achieving minimal flavor violation in a purely four-dimensional model
 
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Publishing Date
2012-05-21
 
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