Exclusive and diffractive quarkonium -- pair production at the LHC and FCC

V. P. Goncalves, R. Palota da Silva

The production of a quarkonium -- pair in exclusive and diffractive processes in $pp$ collisions at the LHC and FCC energies is investigated. We consider the $J/\Psi J/\Psi$ and ${\rm Y}{\rm Y}$ prod…