Realising Mutated Hilltop Inflation in Supergravity

Understand

We present $\mathcal{N}=1$ supergravity models of mutated hilltop inflation (MHI) for both large and small field sectors.

• Models with canonical kinetic terms are developed based on a shift symmetric K\"ahler potential in inflaton superfield, and with a superpotential linear in Goldstino superfield.
• We also construct models with non-canonical kinetic terms for MHI by generalizing the shift symmetry.
• We found that a good fraction of the models can address the entire branch of MHI in a single framework.