Multiplicity dependent $J/\psi$ and $\psi (2S)$ production at forward and backward rapidity in $p$$+$$p$ collisions at $\sqrt{s}=200$ GeV

PHENIX Collaboration, N. J. Abdulameer, U. Acharya +298

The $J/\psi$ and $\psi (2S)$ charmonium states, composed of $c\bar{c}$ quark pairs and known since the 1970s, are widely believed to serve as ideal probes to test quantum chromodynamics i…