A Model of Asymmetric Hadronic Dark Matter and Leptogenesis
Abstract
The paper suggests a model to account for the common origins of the asymmetric dark matter (ADM) and matter-antimatter asymmetry. The ADM nature is a stable hadronic particle consisting of a heavy color scalar and a light u quark, which is formed after the QCD phase transition. At the early stage the ADM are in thermal equilibrium through collisions with the nucleons, moreover, they can emit the γ photons with 0.32 MeV energy. However they are decoupling and become the dark matter at the temperature about 130 MeV. The mass upper limit of the ADM is predicted as MD<1207 GeV. It is feasible and promising to test the model in future experiments.
0