%0 Journal Article
%T The Role of Meson Retardation in Deuteron Photodisintegration above Pion Threshold
%A Michael Schwamb
%A Hartmuth Arenhoevel
%J Physics
%D 2000
%I arXiv
%R 10.1016/S0375-9474(01)00360-8
%X Photodisintegration of the deuteron above $\pi$ threshold is studied in a coupled channel approach including $N \Delta$ and $\pi d$ channels with consideration of pion retardation in potentials and exchange currents. A much improved description of total and differential cross sections in the energy region between $\pi$ threshold and 400-450 MeV is achieved. With respect to polarization observables, the description of the linear photon asymmetry and the proton polarization remains problematic.
%U http://arxiv.org/abs/nucl-th/0008034v1