At the time of the Big Bang, 13.8 billion years ago, every particle of matter is thought to have been produced together with an antimatter equivalent of opposite electrical charge. But in the present-day universe, there is much more matter than antimatter. Why this is the case is one of physics’ greatest questions.
Click here for original story, CERN experiment may help physicists work out the content of neutrino beams
Source: Phys.org