Abstract.
The photoproduction of a neutral pion on the deuteron is considered in the energy region around the η threshold, where a bump-like structure was observed at very backward pion angles. Different dynamical aspects which may be responsible for this phenomenon are analysed within a theoretical frame which includes intermediate ηNN configurations. The results show, in particular, that a three-body treatment of the ηNN interaction is of special importance.
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Fix, A. Signature of the ηNN configurations in coherent πphotoproduction on the deuteron. Eur. Phys. J. A 26, 293–299 (2005). https://doi.org/10.1140/epja/i2005-10167-2
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DOI: https://doi.org/10.1140/epja/i2005-10167-2