Hunting for new physics with the Simons Observatory

par Thibaut Louis (LAL)

lundi 2 déc. 2019, 14:00 → 16:00 Europe/Paris

We are living an exciting time in observational cosmology, the expansion rate inferred from low redshift observations is in disagreement with the one inferred from high redshift observations. While an explanation based on un-modelled systematics in the data is still a possibility, the case for new physics is also getting stronger.  I will discuss how precise measurements of CMB polarisation by the Simons Observatory experiment could help revealing new physics beyond the standard model of cosmology.