Stars and galaxies, and everything in between that makes up our everyday lives exist because they are made up of
matter. Matter consists of sub-atomic particles such as electrons, quarks and neutrinos, and for each particle there is a corresponding counterpart made of antimatter, creating “antiparticles”. According to this theory, the Big Bang should have created matter and antimatter in equal amounts, but today the Universe is made up of far more matter than antimatter.
Researchers from the University of Sheffield, as part of an international group of more than 350 scientists in the T2K Collaboration, have taken a step towards answering why there is so much more matter than antimatter. The study was published in