A geometric bound on F-term inflation
High Energy Physics - Theory
2015-06-04 v2 Cosmology and Nongalactic Astrophysics
High Energy Physics - Phenomenology
Abstract
We discuss a general bound on the possibility to realise inflation in any minimal supergravity with F-terms. The derivation crucially depends on the sGoldstini, the scalar field directions that are singled out by spontaneous supersymmetry breaking. The resulting bound involves both slow-roll parameters and the geometry of the K\"ahler manifold of the chiral scalars. We analyse the inflationary implications of this bound, and in particular discuss to what extent the requirements of single field and slow-roll can both be met in F-term inflation.
Keywords
Cite
@article{arxiv.1203.2909,
title = {A geometric bound on F-term inflation},
author = {Andrea Borghese and Diederik Roest and Ivonne Zavala},
journal= {arXiv preprint arXiv:1203.2909},
year = {2015}
}
Comments
14 pages, improved analysis, references added, matches published version