http://arxiv.org/abs/1508.05392
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.
A. Ghalsasi, D. McKeen and A. Nelson
Tue, 25 Aug 15
65/69
Comments: 14 pages, 6 figures