Cosmic coincidence and asymmetric dark matter in a Stueckelberg extension
Cosmic coincidence and asymmetric dark matter in a Stueckelberg extension
We discuss the possibility of the cosmic coincidence generating the ratio of baryon asymmetry to dark matter in a Stueckelberg $U(1)$ extension of the standard model and of the minimal supersymmetric standard model. For the $U(1)$, we choose ${L}_{\ensuremath{\mu}}\ensuremath{-}{L}_{\ensuremath{\tau}}$ which is anomaly free and can be gauged. The dark matter …