On Fayet-Iliopoulos terms and de Sitter vacua in supergravity: some easy pieces
High Energy Physics - Theory
2012-01-12 v3 High Energy Physics - Phenomenology
Abstract
We clarify a number of issues on Fayet-Iliopoulos (FI) terms in supergravity, keeping the formalism at a minumum and making use of explicit examples. We explain why, if the U(1) vector is massive everywhere in field space, FI terms are not genuine and can always be redefined away or introduced when they are not present. We formulate a simple anomaly-free model with a genuine FI term, a classically stable de Sitter (dS) vacuum and no global symmetries. We explore the relation between N=2 and N=1 FI terms by discussing N=1 truncations of N=2 models with classically stable dS vacua.
Keywords
Cite
@article{arxiv.1110.2174,
title = {On Fayet-Iliopoulos terms and de Sitter vacua in supergravity: some easy pieces},
author = {Francesca Catino and Giovanni Villadoro and Fabio Zwirner},
journal= {arXiv preprint arXiv:1110.2174},
year = {2012}
}
Comments
17 pages, no figures; v3: added sentence at the end of section 3.2