A Search for an N=2 Inflaton Potential

Understand

We consider N=2 supergravity theories that have the same spectrum as the R+R^2 supergravity, as predicted from the off-shell counting of degrees of freedom.

• These theories describe standard N=2 supergravity coupled to one or two long massive vector multiplets.
• The central charge is not gauged in these models and they have a Minkowski vacuum with N=2 unbroken supersymmetry.
• The gauge symmetry, being non-compact, is always broken.