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Models with sterile neutrinos and their phenomenology

Grant number: 11/20743-2
Support Opportunities:Scholarships abroad - Research
Effective date (Start): March 01, 2012
Effective date (End): February 28, 2013
Field of knowledge:Physical Sciences and Mathematics - Physics - Elementary Particle Physics and Fields
Principal Investigator:Renata Zukanovich Funchal
Grantee:Renata Zukanovich Funchal
Host Investigator: Carlos Alberto Savoy
Host Institution: Instituto de Física (IF). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Research place: Institut de Physique Théorique (IPhT), France  


Neutrinos with masses of about 1-10 keV are potentially good candidates for Dark Matter in our Universe. There are some proposals in the literature of extensions of the Standard Electroweak Model in which sterile neutrinos with masses of this order are introduced. In those extensions the mass hierarchy in the neutrino sector is an ad-hoc ingredient, in general no explanation is given for such a big mass splitting. We will try to find flavor models that can realize the mass pattern in the sterile sector needed to implement these models. (AU)

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