Simplified Smooth Inflation with Observable Gravity Waves
High Energy Physics - Phenomenology
2012-08-09 v1 Cosmology and Nongalactic Astrophysics
Abstract
We consider a simplified version of supersymmetric smooth hybrid inflation which contains a single ultraviolet cutoff m_P = 2.4 x 10^{18} GeV, instead of the two cutoffs m_P and M_* ~ few x 10^{17} GeV that are normally employed. With global supersymmetry the scalar spectral index n_s ~ 0.97, which is in very good agreement with the WMAP observations. With a non-minimal Kahler potential, the supergravity version of the model is compatible with the current central values of n_s and also yields potentially observable gravity waves (tensor to scalar ratio r <~ 0.02).
Keywords
Cite
@article{arxiv.1202.0011,
title = {Simplified Smooth Inflation with Observable Gravity Waves},
author = {Mansoor Ur Rehman and Qaisar Shafi},
journal= {arXiv preprint arXiv:1202.0011},
year = {2012}
}
Comments
9 pages, 5 figures