Explosive Axion Production from Saxion
High Energy Physics - Phenomenology
2018-01-17 v1 Cosmology and Nongalactic Astrophysics
Abstract
The dynamics of saxion in a supersymmetric axion model and its effect on the axion production is studied in detail. We find that the axion production is very efficient when the saxion oscillation amplitude is much larger than the Peccei-Quinn scale, due to a spike-like behavior of the effective axion mass. We also consider the axino production and several cosmological consequences. The possibility of detection of gravitational waves from the non-linear dynamics of the saxion and axion is discussed.
Keywords
Cite
@article{arxiv.1710.02461,
title = {Explosive Axion Production from Saxion},
author = {Yohei Ema and Kazunori Nakayama},
journal= {arXiv preprint arXiv:1710.02461},
year = {2018}
}
Comments
17 pages, 3 figures