HEP Theory Journal Club

Non-Gaussianity and cosmological collider physics

Ziwei Wang

McGill

Inflation predicts a near scale-invariant power spectrum while higher point correlation can reveal more. From non-gaussianity, not only the intrinsic interaction of the inflaton but also the possible existence of other spectacle fields can be revealed. In this journal club, I will give a brief introduction to the result that how different shapes of non-gaussianity are related to quantities such as spin and mass of spectacle fields coupled with the inflaton.