ON THE ROLE OF THE SINGLE-MESON POLE DIAGRAM IN SCATTERING OF GAMMA QUANTA BY PROTONS
It is shown that when the sign of the γN-scattering pole diagram connected with π0-meson decay is correctly chosen, the contribution of the pole to the cross section for the scattering of γ quanta by protons decreases considerably. In order to obtain information on the lifetime of the π0 meson, the precision of the experiments must be appreciably improved.