Deciphering charmoniumlike exotic states in photon - hadron interactions   at RHIC and LHC energies
  In this paper we propose the study of the photoproduction of charmoniumlike states in $pp$ collisions at RHIC and LHC energies and estimate the rapidity distribution and total cross sections for the production of the exotic hadrons $Y(3940)$, $X(3915)$, $Z(4430)$ and $Z_c(3900)$. We demonstrate that the experimental analysis of this process can provide complementary and independent checks on these states, and help to understand their underlying nature. 
V. P. Goncalves, M. L. L. da Silva
hep-ph hep-ex