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Doctoral Thesis
DOI
10.11606/T.43.1993.tde-21022014-151603
Document
Author
Full name
Jorge Eduardo Cieza Montalvo
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 1993
Supervisor
Committee
Eboli, Oscar Jose Pinto (President)
Brandt, Fernando Tadeu Caldeira
Escobar, Carlos Ourivio
Padula, Sandra dos Santos
Simao, Fernando R a
Title in Portuguese
Fenomenologia de anéis de colisão a altíssimas energias
Keywords in Portuguese
Física de alta energia
Física de partículas
Abstract in Portuguese
Na primeira parte do trabalho estudamos a produção de léptons pesados através do mecanismo de fusão de glúons, assumindo a extensão supersimétrica mínima do modelo padrão. Nós mostraremos que para altos valores de tan a seção de choque é aumentada em relação ao modelo padrão, o que acarreta um número grande de eventos, permitindo extrair o sinal de background. Na segunda parte nós estudamos os sinais dos leptoquarks vetoriais em aceleradores E+ E- através de seus efeitos sobre a produção de um par de jatos, assim como sua produção isolada e sua produção em pares. Por último investigamos a produção de leptoquarks vetoriais em aceleradores hadrônicos, bem como sinais indiretos de existência destas partículas.
Title in English
Phenomenology Ring Collisions High-energy
Keywords in English
High energy physics
Particle physics
Abstract in English
In the first parto f the work, we study the production of heavy lepton assuming the minimal supersymetric standard model. We show that for large values of tan , the cross-section is enhanced in comparison with standard model, and that it is possible to have a large number of events, allowing to extract the signal from the background. In the second part we study the signal for composite vector leptoquarks in E+ E- colliders (LEP II, NLC and CLIC) trough their effects on the production of jet pairs, as well as their single and pair productions. Finally we investigate a production of vector leptoquarks in pp(pp) colliders, as well as indirect signals for existence of these particles.
 
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39921Montalvo.pdf (2.69 Mbytes)
Publishing Date
2014-02-21
 
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