Chaotic Hybrid Inflation with a Gauged B - L

Understand

In this paper we present a novel formulation of chaotic hybrid inflation in supergravity.

• The model includes a waterfall field which spontaneously breaks a gauged $U_1(B-L)$ at a GUT scale.
• This allows for the possibility of future model building which includes the standard formulation of baryogenesis via leptogenesis with the waterfall field decaying into right-handed neutrinos.
• We have not considered the following issues in this short paper, i.e.