asymmetry of matter and antimatter

The asymmetry of matter and antimatter refers to the observed imbalance between these two types of particles in the universe. When the Big Bang occurred, equal amounts of matter and antimatter were expected to form. However, for reasons still not fully understood, significantly more matter than antimatter exists today. This means that while antimatter particles have counterparts in matter (like electrons and positrons), antimatter is rare in the universe. This asymmetry raises important questions about the fundamental laws of physics, the origins of the universe, and why we see a matter-dominated cosmos rather than one filled with equal parts of both.