CERN's LHCb experiment identifies last doubly charmed baryon.

The LHCb Collaboration at CERN has announced the discovery of a new particle, completing the family of doubly charmed baryons. This particle consists of one strange quark and two charm quarks, closing a long-standing chapter in particle physics. The finding is based on data from high-energy proton-proton collisions at the Large Hadron Collider.