Physicists have struggled for seven decades with the question of why there is more matter in the universe than antimatter.

The NA61/SHINE collaboration have observed a strikingly large imbalance between charged and neutral kaons in argon–scandium ...

Due to quantum fluctuations, two photons can also interact and create a quark and antiquark. Before the quark and antiquark ...

Compared with the top–antitop process, the production of a single top has a smaller cross-section, and the presence of only one heavy top quark in the events makes this process much more ...

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 ...