On a possible origin of a resonance-like structure in the two-photon invariant mass spectrum of the reaction pp->ppgg

A. S. Khrykin, S. B. Gerasimov

We show that the resonance-like structure found by the \emph{CELSIUS-WASA Collaboration} in the two-photon invariant mass spectrum of the reaction $pp\to pp\gamma \gamma$ is rather a signat…