Neutrino matter with PLANCK

Abstract

After reviewing the main mechanisms by which cosmological measurements constrain the sum of neutrino masses, I give the current reached upper limits, emphasizing the level of model-dependence. A large improvement is to be expected with PLANCK's satellite data, on which I give some news, in particular due to the characterization of the CMB-lensing effect. It will however require a thorough control of many systematics effects upon which progress has been made recently.Comment: Invited Talk at Identification of Dark Matter 2010-IDM2010, July 26-30, 2010, Montpellier France. This paper has been temporarily withdrawn until it receives approval from the Planck Editorial Boar