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Signature of the ηNN configurations in coherent πphotoproduction on the deuteron

Original Article

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.

PACS.

13.60.Le Meson production 21.45.+v Few-body systems 25.20.-x Photonuclear reactions 

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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2005

Authors and Affiliations

  1. 1.Institut für KernphysikJohannes Gutenberg-Universität MainzMainzGermany

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