Explosive Axion Production from Saxion
arXiv:1710.02461 · doi:10.1016/j.physletb.2017.11.035
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.
17 pages, 3 figures
References in corpus (9)
- Flaxion: a minimal extension to solve puzzles in the standard model
- A 3.55 keV Photon Line and its Morphology from a 3.55 keV ALP Line
- Cosmological implications of supersymmetric axion models
- Dark radiation and small-scale structure problems with decaying particles
- Nonthermal Gravitino Production after Large Field Inflation
- Solving Cosmological Problems of Supersymmetric Axion Models in an Inflationary Universe
- Inflation from a Supersymmetric Axion Model
- Mixed axion/gravitino dark matter from SUSY models with heavy axinos
- Non-perturbative Corrections to Particle Production from Coherent Oscillation