Liberated N=1 Supergravity

TL;DR

This paper introduces a novel interaction in four-dimensional ${ m N}=1$ supergravity that incorporates an arbitrary function, enhancing the flexibility of model building for phenomenology and inflation.

Contribution

It presents a new interaction framework with an arbitrary function, maintaining off-shell supersymmetry and K"ahler-Weyl invariance, expanding supergravity model possibilities.

Findings

Enhanced scalar potential with arbitrary function

Maintains off-shell supersymmetry and invariance

Facilitates flexible low-energy and inflationary models

Abstract

We discuss a new interaction for chiral models in four-dimensional ${\cal N}=1$ supergavity. It contains a new arbitrary function in addition to the K\"ahler potential and superpotential. Its features include linearly realized off-shell supersymmetry, K\"ahler-Weyl invariance and broken supersymmetry. The corresponding scalar potential is augmented by the arbitrary function which allows freedom in constructing low-energy phenomenological models and inflationary models rooted in supergravity.