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Doctoral Thesis
DOI
10.11606/T.43.1995.tde-26022014-152614
Document
Author
Full name
Francisco Antonio Pena Campos
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 1995
Supervisor
Committee
Nemes, Maria Carolina (President)
Gomes, Marcelo Otavio Caminha
Krein, Gastão Inácio
Thomaz, Maria Teresa Climaco dos Santos
Veit, Eliane Angela
Title in Portuguese
Bosonização do modelo de Nambu-Jona-Lasinio SU(3) generalizado na expansão 1/N.
Keywords in Portuguese
Bosonização
Condensed matter physics
Modelo Nambu-Jona-Lasinio
Teoria de campos
Abstract in Portuguese
O presente trabalho consiste na expansão1/N de uma versão estendida do modelo de Nambu-Jona-Lasinio SU(3) no contexto de integrais funcionais. A equação de gap propagadores mesônicos, decaimentos e espalhamentos, aparecem naturalmente como ordens diferentes na expansão. A característica nova nesta abordagem é a inclusão de correções de ordem superior à ordem dominante, que nunca foram consideradas anteriormente. O método também permite a construção de uma densidade de Lagrangeana quiral mésons interagentes baseada no modelo Nambu-JonaLasinio SU(3) aqui obtida pela primeira vez.
Title in English
Bosonization Nambu-Jona-Lasinio model SU(3) Widespread Expansion 1/N
Keywords in English
Bosonization
Condensed matter physics
Field theory
Nambu-Jona-Lasinio model
Abstract in English
The present work consists in 1/N expansion extended version of the SU(3) Nambu-Jona-Lasinio model in the context of the Functional Integral. The gap equations, meson propagators, triangle diagram, etc, appear quite naturally as different orders in the expansion. The new features of this approach in the inclusion of high order corrections in the I/N leading orders, which have never been included in the previous one. The method also allows for the construction of a chical Lagrangean of interacting mesons based on the SU(3) NJL model, here obtained for the first time.
 
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45388PenaCampos.pdf (3.08 Mbytes)
Publishing Date
2014-02-27
 
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