Canceled – Axions and low scale inflation
This KMI Theory Seminar is cancelled, since the speaker’s flight got cancelled due to the storm Sabine (Ciara) hitting Europe.
Speaker: Lorenzo Ubaldi (SISSA)
Title: Inflaxion Dark Matter
Date: Wednesday, Feb. 12th, 2020, 13:00-14:00
In models of axion dark matter one typically distinguishes between two scenarios, with the Peccei-Quinn symmetry broken either before or after inflation. What happens if the Hubble scale of inflation is very low, lower than the axion mass? I will address this question, considering a model in which the axion mixes kinetically with the inflaton.