General sGoldstino Inflation

TL;DR

This paper demonstrates that all inflationary models, including dark energy scenarios, can be embedded in minimal supergravity with a single chiral superfield, offering tunable supersymmetry breaking and illustrating with Planck-favored examples.

Contribution

It provides a general method for embedding inflationary models into minimal supergravity with a single superfield, highlighting the tunability of supersymmetry breaking.

Findings

All inflationary models can be embedded in minimal supergravity.

Supersymmetry breaking is independently tunable.

Examples consistent with Planck data are presented.

Abstract

We prove that all inflationary models, including those with dark energy after the end of inflation, can be embedded in minimal supergravity with a single chiral superfield. Moreover, the amount of supersymmetry breaking is independently tunable due to a degeneracy in the choice for the superpotential. The inflaton is a scalar partner of the Goldstino in this set-up. We illustrate our general procedure with two examples that are favoured by the Planck data.