CERN researchers discover an exotic particle with a long life

Researchers from the LHCb experiment at CERN recently presented a new discovery. The team discovered a new particle they labeled as TCC+, which is a tetraquark. A tetraquark is an exotic hadron that contains two quarks and two antiquarks. It is the longest-lived exotic matter particle ever discovered and the first to contain a pair of heavy quarks and two light antiquarks. Quarks are the fundamental building blocks matter is constructed of, combining to form hadrons, primarily baryons, such as the proton and the neutron, consisting of three quarks and mesons formed in a quark-antiquark pair.