Resonance structure in the γγ and ${\pi }^0{\pi }^0$ systems in dC interactions

Kh. U. Abraamyan, A. B. Anisimov, M. I. Baznat +6

Along with ${\pi }^0$ and η mesons, a resonance structure in the invariant mass spectrum of two photons at Mγγ = 360 \pm 7 \pm 9 MeV is observed in the reaction d + C \rightarrow γ + γ…