Speaker: Thomas Tram

Neutrino physics is a prime example of a field where cosmology can answer particle physics questions which can not easily be addressed by ordinary laboratory experiments. For instance, what is the mass of the active neutrinos, and do they have non-standard interactions? Are neutrinos a solution to the tension in sigma8 between weak lensing/clustering data and CMB data from Planck? Do sterile neutrinos exist, and how are they produced in the early Universe? I will first convince you that neutrinos are cool and then continue to answer some of these questions.