two-particle interactions

Two-particle interactions refer to the ways in which two particles influence each other through forces or exchanges. This could involve particles attracting or repelling each other, or exchanging energy or information. Examples include gravitational attraction between planets, electromagnetic forces between charged particles, or particles like electrons and protons interacting within an atom. These interactions are fundamental to understanding how matter behaves and forms structures in the universe. They are governed by different fundamental forces, and studying them helps scientists unravel the underlying principles of nature.