What is strong interaction?
Strong interaction is one of the fundamental forces in physics. It is responsible for the interaction within particles, especially the nuclear force between particles. Strong interaction acts as the carrier of strong force, acting on heavy particles, such as protons and neutrons, that make up atomic nuclei. It is due to the presence of strong interaction that protons and neutrons can be bound together to form atomic nuclei. The characteristic of strong interaction is its tremendous strength, allowing protons and neutrons to come very close to each other and overcome the repulsive force of electromagnetism between them. The strength of strong interaction far exceeds that of electromagnetism and gravity, making it the strongest of the four fundamental forces. Its specific mechanism involves the exchange of particles composed of gluons to transmit the force. These gluons are known as gauge bosons, and they mediate strong interaction through their mutual exchange. The theoretical foundation of strong interaction is quantum chromodynamics (QCD), which is a framework for explaining strong interaction. In conclusion, strong interaction plays a crucial role in nuclear and high-energy physics, allowing us to gain a deeper understanding of the mysteries of the microscopic world.