The contributions of three different types of driving terms are included in the estimation of the pd → pdη reaction at low energies. Near threshold, it is predicted that a two-step model involving an intermediate pion should be the most important but, as the energy approaches the threshold for η production in the free nucleon-nucleon reaction, a pick-up mechanism with a spectator proton should become dominant. The total cross-sections are underestimated by about a factor of two compared with experimental data but the discrepancies in the angular distributions are more serious, with no sign in the data for the peaks corresponding to the pick-up diagram.
25.10.+s Nuclear reactions involving few-nucleon systems 13.60.Le Meson production 14.40.Aq π, K, and η mesons
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