Measurement of the relative yields of $\psi (2S)$ to $\psi (1S)$ mesons produced at forward and backward rapidity in $p$$+$$p$, $p$$+$Al, $p$$+$Au, and ${}^3$He$+$Au collisions at $\sqrt{s_{{}_{NN}}}=200$ GeV

A. Adare, C. Aidala, N. N. Ajitanand +358

The PHENIX Collaboration has measured the ratio of the yields of $\psi (2S)$ to $\psi (1S)$ mesons produced in $p$$+$$p$, $p$$+$Al, $p$$+$Au, and ${}^3$He$+$Au collisions at $\sqrt{s_{_{NN…