New particle discovered by Large Hadron Collider

The new particle has been named "Xi-cc-plus". Scientists hope the particle -- which is similar to a proton but four times heavier -- will reveal more about the strange behaviour of quantum mechanics. All the matter around us -- including the protons and neutrons that make up the nucleus of atoms -- are made of baryons. These common particles are composed of three quarks, which are fundamental building blocks of matter. Quarks come in six "flavours": up, down, charm, strange, top and bottom. Each has varying mass...