Signature of the ηnN configurations in coherent πphotoproduction on the deuteron

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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.

Original languageEnglish
Pages (from-to)293-299
Number of pages7
JournalEuropean Physical Journal A
Issue number2
Publication statusPublished - Nov 2005


ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics

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