Three required conditions for baryogenesis were derived by Andrei Sakharov in 1967 .
Three required conditions for baryogenesis were requires a violation of the particle physics symmetry , called CP - symmetry , between matter and antimatter .
Three required conditions for baryogenesis were derived by Andrei Sakharov in 1967 , and requires a violation of the particle physics symmetry , called CP - symmetry , between matter and antimatter .