CERN Physicists Discover Four-Charm-Quark Particle, Physics

Physicists from CERN’s LHCb Collaboration have discovered a new tetraquark particle, named X(6900), composed of two charm quarks and two charm antiquarks.

Particle physics: Surprise discovery reveals charm quark within the proton

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Exotic pentaquark particle found at CERN's Large Hadron Collider

The Large Hadron Collider experiment to make quark-gluon plasma

Cern: scientists discover four new particles – here's why they matter

Exploring the physics processes inside the hottest matter in the universe

ATLAS observes potential four-charm tetraquark

The Higgs boson, ten years after its discovery

ATLAS observes potential four-charm tetraquark

5 Discoveries Made by the Large Hadron Collider (So Far)

Mysterious X particle spotted in quark–gluon plasma at CERN – Physics World

Large Hadron Collider project discovers three new exotic particles

Charm Quarks Offer Clues to Confinement - Berkeley Lab – Berkeley Lab News Center