A major step towards the explanation of the matter-antimatter asymmetry

Super-Kamiokande detector (Source: T2K-experiment.org) - The international T2K Collaboration has published results showing the strongest evidence to date implying the breaking of the symmetry between matter and antimatter in so-called neutrino oscillations. This is a major step towards the understanding of the dominance of matter over antimatter in the Universe. A team of particle physicists from the University of Bern provided important contributions to the experiment. The observed dominance of matter over antimatter in the Universe is among the most relevant open questions in science. According to our current understanding of the early stages of the Universe, at its origin an equal amount of matter and antimatter was generated. Its evolution toward a state where matter dominates over antimatter requires as necessary condition the violation of the so-called Charge-Parity (CP) symmetry. Transforming elementary particles.