Why does matter exists?

  In September 2016 a new result was announced that bears on the dominance of matter over antimatter in the universe. But before discussing the discovery, It wants to review what particle physics has to say about matter and antimatter. There are three types of fundamental particles in the universe: leptons, quarks, and force-mediating bosons. The first two of these are fractional-spin fermions that can have the form of either matter or antimatter.

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