The creation of matter in the early universe was aided by the four fundamental forces, the strong force, the weak force, the electromagnetic force and the force of gravity. The standard model includes the three of the four fundamental forces excluding gravity and whilst it explains how these forces act upon the matter particles it is difficult to include gravity into its framework. In the early stages of the universe the temperatures were very high, thus the weak, electromagnetic and strong forces were unified.
The creation of matter in the early universe was aided by the four fundamental forces, the strong force, the weak force, the electromagnetic force and the force of gravity. The standard model includes the three of the four fundamental forces excluding gravity and whilst it explains how these forces act upon the matter particles it is difficult to include gravity into its framework. In the early stages of the universe the temperatures were very high, thus the weak, electromagnetic and strong forces were unified.