Polarization effects in dispersion relations for photoproduction of π-mesons on deuterons

The photoproduction amplitude of ⁰-mesons on deuterons is calculated for different cases of polarization of the spin of deuterons by means of impulse approximation. The calculations carried out in the two-nucleon approximation in the Breit system are valid up to a maximum photon energy 236 MeV. In the unobservable region only a free proton and a free neutron contribute to the continuous part of the spectrum.The dispersion relations are given for all cases of deuteron-spin polarization.This paper is a continuation of the author's papsr elaborated in the Laboratory of Theoretical Physics of the Joint Institute of Nuclear Research, Dubna USSR, published in Nuclear Physics26 (1961), 681, which is hereafter referred to as I.