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Master's Dissertation
DOI
10.11606/D.43.2012.tde-08082012-150548
Document
Author
Full name
Leila Lobato Graef
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2012
Supervisor
Committee
Abdalla, Elcio (President)
Horvath, Jorge Ernesto
Lima, Marcos Vinicius Borges Teixeira
Title in Portuguese
Um modelo para decaimento da energia escura
Keywords in Portuguese
Energia Escura
Matéria escura
Abstract in Portuguese
Neste trabalho discutimos um modelo baseado em teoria de campos para descrever a energia escura, no qual ela é representada por uma partícula ultra-leve situada em um mínimo metaestável de um potencial. Mostramos que a energia escura neste modelo decai em matéria escura durante o tempo de vida do universo, amenizando o problema da coincidência.
Title in English
A model for dark energy decay
Keywords in English
Dark energy
Dark Matter
Abstract in English
In the present work we discuss a field theory model in which dark energy is described by ultra-light particle situated at a metastable minimum of a potential. We show that dark energy in this model decays into dark matter during a time scale corresponding to the age of the universe, alleviating the coincidence problem.
 
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Publishing Date
2013-05-29
 
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