Non-strange Dibaryon Resonances Observed in the $\gamma d\to {\pi }^0{\pi }^{0}d$ Reaction

T. Ishikawa, H. Fujimura, H. Fukasawa +34

Coherent double neutral-pion photoproduction on the deuteron, $\gamma d${$\to$}${\pi }^0{\pi }^{0}d$, has been experimentally studied at incident photon energies ranging from 0.75 to 1.15 GeV. T…