A Model of Four Generation Fermions and Cold Dark Matter and Matter-Antimatter Asymmetry

Abstract

I suggest a practical particle model as an extension to the standard model. The model has a TeV scale $U(1{)}_{B-L}$ symmetry and it contains the fourth generation fermions with the TeV scale masses, in which including a cold dark matter neutrino. The model can completely account for the fermion flavor puzzles, the cold dark matter, and the matter-antimatter asymmetry through the leptogenesis. In particular, it is quite feasible and promising to test the model in future experiments.

Comments: 22 pages, 6 figures, some small corrections. arXiv admin note: substantial text overlap with arXiv:1301.0076, arXiv:1206.5353