Dark radiation and sterile neutrinos

Friday May 18, 14:30hs - Seminar room

Speaker: Jan Hamann  (University of Aarhus, Denmark)

Divendres, 18 de maig de 2012 a les 14.30h

Abstract:

Recent cosmological data hint at the possible presence of an excess energy density in relativistic particles, dubbed "dark radiation".

After reviewing the impact of dark radiation on cosmological observables, I will present the current observational status and give an outlook on upcoming observations. Finally, I will indulge in some speculation on the identity of the dark radiation and discuss whether it could be composed of light sterile neutrinos, which have been suggested as a resolution to the LSND/MiniBoone/reactor anomalies.

 

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