| Observations show that the densities of matter and antimatter are different fromeach other in the universe. The conventional grand unified theory can qualitativelyexplain the phenomenon, but cannot explain the difference in the quantity. In thepresent paper I discuss an grand unified model, i.e.‘An SU(5) Grand Unified Modelwith Hadrons as Nontopological Solitons’, which is different from other grandunified model in essence, have completed some supplements to the model, andpresent an explanation for the phenomenon that the densities of matter and antimatterare different from each other in the universe based on this model. |
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