Axino Dark Matter in Moduli-induced Baryogenesis
High Energy Physics - Phenomenology
2015-06-22 v1
Abstract
We consider axino dark matter in large R-parity violation (RPV). In moduli-dominated universe, axino is produced thermally or non-thermally via saxion decay, then late-decaying moduli dilute axino density, which results in the right abundance to explain the present dark matter. At the same time baryon asymmetry is generated due to moduli-induced baryogenesis via the large RPV. Axino is cosmologically stable in spite of the large RPV since its decay rate is suppressed by the axion decay constant, heavy squark mass or kinematics.
Keywords
Cite
@article{arxiv.1407.1827,
title = {Axino Dark Matter in Moduli-induced Baryogenesis},
author = {Koji Ishiwata},
journal= {arXiv preprint arXiv:1407.1827},
year = {2015}
}
Comments
20 pages, 2 figures