Non-Gaussianities in a two-field generalization of Natural Inflation
Cosmology and Nongalactic Astrophysics
2018-04-11 v2 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
We describe a two-field model that generalizes Natural Inflation, in which the inflaton is the pseudo-Goldstone boson of an approximate symmetry that is spontaneously broken, and the radial mode is dynamical. We analyze how the dynamics fundamentally depends on the mass of the radial mode and calculate/estimate the non-Gaussianities arising from such a scenario.
Keywords
Cite
@article{arxiv.1711.08549,
title = {Non-Gaussianities in a two-field generalization of Natural Inflation},
author = {Simon Riquelme},
journal= {arXiv preprint arXiv:1711.08549},
year = {2018}
}
Comments
47 pages, 7 figures