But the size of this asymmetry in the Standard Model is not large enough to account for the imbalance and the asymmetry has so far been observed only in certain decays of particles called mesons ...

A recent theory for the origin of dark matter involves a dark (or hidden) sector in which an analogue to the strong force exists, which results in the creation of dark baryons and dark mesons. In this ...

Protons and neutrons are both types of baryon mesons - Made up of a quark and antiquark pair There are six types of quarks. These give hadrons electrical charge and this is important in the ...