Discussion Session

Multi-Messenger Astronomy

Discussion Session

TBA

TBA

Connecting inflation to diverse observables: leptons, baryons and cosmological magnetic fields

Axions are attractive candidates for theories of large-field inflation that are capable of generating observable primordial gravitational wave backgrounds. These fields enjoy shift-symmetries that protect their role as inflatons from being spoiled by coupling to unknown UV physics. This symmetry also restricts the couplings of these axion fields to other matter fields. At lowest order, the only allowed interactions are derivative couplings to gauge fields and fermions.

Keynote Address