Elastic Photoproduction of π^0 Mesons from Deuterium around the N_<1/2>(1525) Resonance

概要

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The differential cross sections of the γ+d→π^0+d reaction have been measured at the pion angle of 50° in the center of mass system and in the photon energy range from 650MeV to 820MeV, for the purpose of estimating the isotopic vector part of the photopion production amplitude from nucleons around the second resonance, N_<1/2>(1525). Recoiled deuterons were measured with the combination of the momentum analysis with a magnet and the time of flight measurement. The measured cross section together with data obtained by us in the previous experiment were analysed basing on the impulse approximation. The s_<11>-, s_<31>-, p_<33>-, p_<11>- and d_<13>-waves are included in the analysis. The results of analysis are consistent with the conclusion that the isotopic vector part is dominant in the d_<13>-wave amplitude of π^0 photoproduction from free nucleons around the N_<1/2>(1525) resonance.
社団法人日本物理学会の論文
1968-04-05