The Role of Meson Retardation in Deuteron Photodisintegration above Pion Threshold

Details The Role of Meson Retardation in Deuteron Photodisintegration above Pion Threshold The Role of Meson Retardation in Deuteron Photodisintegration above Pion Threshold

2000-08-18

arxiv.org/abs/nucl-th/0008034v1

Nucl.Phys. A690 (2001) 682-710

Physics

Nuclear Physics

Nuclear Theory

26 pages revtex including 25 figures

Scientific paper

10.1016/S0375-9474(01)00360-8

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.

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