Baryogenesis via Mesino Oscillations
High Energy Physics - Phenomenology
2015-11-04 v1 Cosmology and Nongalactic Astrophysics
Abstract
We propose a new mechanism for baryogenesis at the 1-200 MeV scale. Enhancement of CP violation takes place via interference between oscillations and decays of mesinos--bound states of a scalar quark and antiquark and their CP conjugates. We present the mechanism in a simplified model with four new fundamental particles, with masses between 300 GeV and 10 TeV, and show that some of the experimentally allowed parameter space can give the observed baryon-to-entropy ratio.
Keywords
Cite
@article{arxiv.1508.05392,
title = {Baryogenesis via Mesino Oscillations},
author = {Akshay Ghalsasi and David McKeen and Ann E. Nelson},
journal= {arXiv preprint arXiv:1508.05392},
year = {2015}
}
Comments
14 pages, 6 figures