Supersymmetric hybrid inflation with a light scalar
Cosmology and Nongalactic Astrophysics
2013-08-20 v2 High Energy Physics - Theory
Abstract
Light scalar fields present during inflation can lead to interesting observable signatures, especially in models with non-equilibrium reheating dynamics. We study a supersymmetric hybrid inflation model with a third scalar whose lightness is protected by symmetry, using analytical and numerical techniques, and demonstrate that the amplitude, the spectral index and the non-Gaussianity parameter fNL of the primordial curvature perturbation are within the Planck observational bounds for suitable parameter values.
Keywords
Cite
@article{arxiv.1304.8041,
title = {Supersymmetric hybrid inflation with a light scalar},
author = {Stefano Orani and Arttu Rajantie},
journal= {arXiv preprint arXiv:1304.8041},
year = {2013}
}
Comments
8 pages, 7 figures, v2: updated to journal version