Determination of the coupling constants 3Hdn, 3Hπ and 3He3Heπ from data on the differential cross sections OF n3H and n3He elastic scattering

Compton scattering on the pion and radiative pion photoproduction from the proton

“…The parameters A, Ao, A~, A2 ... have to be determined from a fit to the experimental data for the reaction 7p--*TrcN. The rate of convergence of (22) can be improved by using a conformal mapping of the analytic region of the scattering amplitude [35][36][37]25]. Another method allowing a more reliable approximation is the Pad ~ approximant method [381.…”