by
Øystein Elgarøy(Institute of theoretical astrophysics, University of Oslo)
→
Europe/Stockholm
FB51
FB51
Description
Neutrinos are now known to be massive and in the common opinion their masses
should be small, of the order of the mass splittings measured in solar and
atmospheric neutrino oscillations. However, experimental upper bounds are much
weaker than this and cannot exclude neutrino masses of the order of a few
electronvolts. This has implications for attempts at estimating cosmological
parameters from observations CMB anisotropies and the clustering of matter, and
in my talk I will explain why constraints on neutrino masses from experiments
like KATRIN were important in the quest for "precision cosmology".
