Publication year: 2017

“Measurement of the relative yields of ψ(2S) to ψ(1S) mesons produced at forward and
backward rapidity in p+p, p+Al, p+Au, and 3He+Au collisions at √SNN=200 GeV”, A.
Adare, et al. [PHENIX Collaboration], Phys. Rev. C95 034904 (2017)