Matter-antimatter asymmetry refers to the observed imbalance between matter and antimatter in the universe. According to the Big Bang theory, equal amounts of both should have been created. However, our universe is predominantly composed of matter, with very little antimatter present. This asymmetry raises important questions in particle physics and cosmology. Scientists study processes like CP violation to understand why matter is favored over antimatter. Discovering the reasons behind this imbalance could provide insights into the fundamental laws of physics and the evolution of the universe.