Observation of new structure in the J/\(\psi\)J/\(\psi\) mass spectrum in proton-proton collisions at \( \sqrt{s} = \) 13 TeV. Physical Review Letters. March 15, 2024.
Observation of new structure in the J/\(\psi\)J/\(\psi\) mass spectrum in proton-proton collisions at \( \sqrt{s} = \) 13 TeV. Physical Review Letters. March 15, 2024.