All-Charm Tetraquark Studies at the CMS Experiment

Key Points

• The research aims to confirm the existence of all-charm tetraquark states, using data from high-energy proton collisions.
• Analyzed data from the Large Hadron Collider's Run 2 and Run 3.
• Observed decay patterns in production of double J/psi and four muons.
• Utilized statistical significance to identify resonance states.
• First observation of X(6600) state and confirmation of X(6900) state.
• Observation of X(7100) state with over 5 sigma significance.
• Measured statistical enhancement of approximately 2.6 times after incorporating Run 3 data.