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Theoretical Description of the pd -> pd eta Reaction Near Threshold

U. Tengblad·G. Faldt·C. Wilkin
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Abstract

The contributions of three different types of driving terms are included in the estimation of the pd -> pd eta 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 eta 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 to 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.

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U. Tengblad, G. Faldt, C. Wilkin. 2005-06-08. Theoretical Description of the pd -> pd eta Reaction Near Threshold. https://doi.org/10.1140/epja%2Fi2005-10112-5

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