Hadrons: Particles made of quarks, which are held together by the strong force. They include baryons (made of three quarks) and mesons (made of a quark and an antiquark). Tetraquark: An exotic ...

In two new articles posted to the arXiv preprint server, the LHCb collaboration at the Large Hadron Collider (LHC) reports seeing evidence of CP violation in decays of baryons and in decays of ...

Hadrons fall into two types: baryons - Made up of three quarks. Protons and neutrons are both types of baryon mesons - Made up of a quark and antiquark pair There are six types of quarks.