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Dark energy and dark matter in interaction

Grant number: 09/05811-1
Support Opportunities:Research Grants - Visiting Researcher Grant - International
Duration: August 15, 2009 - September 14, 2009
Field of knowledge:Physical Sciences and Mathematics - Physics - Elementary Particle Physics and Fields
Principal Investigator:Elcio Abdalla
Grantee:Elcio Abdalla
Visiting researcher: Bin Wang
Visiting researcher institution: Fudan University, China
Host Institution: Instituto de Física (IF). Universidade de São Paulo (USP). São Paulo , SP, Brazil


One of the most ambitious possibilities of comprehension of Dark Matter and Dark Energy is to base our research on the construction of a Lagrangean model based on the general standard field theory description of particles and fields. It is a very complex question. The previously studied model of two interacting fluids is not compatible with a Lagrangean formulation. We have thus tried a tachyon Lagrangean for the bosonic fields, as well as phantoms. In such a case we have reported a complete formulation. Our next step isto consider a higgsino model for the dark matter component. (AU)

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