Speaker
Maria Archidiacono
(Aarhus University)
Description
In the last few years the imprint of light sterile neutrinos on cosmological data sets has been deeply investigated within the framework of different theoretical scenarios. Nevertheless the question whether cosmology can accommodate the existence of additional neutrinos is still open. The strong dependence of the results on the underlined cosmological model and on the included data sets contributes to a puzzling scenario. Recently the discovery of B-modes in the polarization of the Cosmic Microwave Background has reopened the debate, providing new life to light sterile neutrinos and their unique imprinting on CMB as a dark radiation component. I will review the status of the cosmological constraints on light sterile neutrinos, focussing the discussion on the consistency with neutrino oscillation experiments.
Author
Maria Archidiacono
(Aarhus University)
