From the exclusive photoproduction of heavy quarkonia at HERA to the   EDDE at TeVatron and LHC
  Exclusive photoproduction of heavy quarkonia at HERA is analyzed in the framework of the Regge-eikonal approach together with the nonrelativistic bound state formalism. Total and differential cross-sections for the process $\gamma+p\to (Q\bar{Q})_{1S}+p$ are calculated. The model predicts cross-sections of Exclusive Double Diffractive Events (EDDE) at TeVatron and LHC. 
V.A. Petrov, A.V. Prokudin and R.A. Ryutin