"Researchers at the Large Hadron Collider Beauty (LHCb) experiment at CERN near Geneva have discovered antimatter and matter versions of “charm” quarks—one of six types, or flavors, of a class of elementary matter particles—acting differently from one another. In a new study, which was presented in March at the “Rencontres de Moriond” particle physics conference in La Thuile, Italy, the physicists found that unstable particles called D0 mesons (which contain charm quarks) decayed into more stable particles at a slightly different rate than their antimatter counterparts. Such differences could help explain how an asymmetry arose between matter and antimatter after the big bang, resulting in a universe composed mostly of matter."
https://www.scientificamerican.com/artic...redirect=1
https://www.scientificamerican.com/artic...redirect=1
