Updated measurements of exclusive $J/\psi$ and $\psi (2S)$ production cross-sections in $pp$ collisions at $\sqrt{s}=7$ TeV

LHCb collaboration, R. Aaij, B. Adeva +670

The differential cross-section as a function of rapidity has been measured for the exclusive production of $J/\psi$ and $\psi (2S)$ mesons in proton-proton collisions at $\sqrt{s}=7$ TeV,…