Removing instability of Polonyi-Starobinsky supergravity by adding FI term
High Energy Physics - Theory
2018-03-14 v4 General Relativity and Quantum Cosmology
Abstract
Polonyi-Starobinsky (PS) supergravity is the N=1 supergravity model of Starobinsky inflation with spontaneous supersymmetry breaking (after inflation) due to Polonyi superfield, and inflaton belonging to a massive vector supermultiplet. The PS model is used for an explicit realization of the (super-heavy) gravitino dark matter scenario in cosmology. We find a potential instability in this model, and offer a mechanism for its removal by adding a Fayet-Iliopoulos (FI) term.
Cite
@article{arxiv.1711.06789,
title = {Removing instability of Polonyi-Starobinsky supergravity by adding FI term},
author = {Yermek Aldabergenov and Sergei V. Ketov},
journal= {arXiv preprint arXiv:1711.06789},
year = {2018}
}
Comments
8 pages, LaTeX; major revision of Sec.3, references added