Physics – Nuclear Physics – Nuclear Theory
Scientific paper
1999-06-08
Nucl.Phys.A660:423-438,1999
Physics
Nuclear Physics
Nuclear Theory
18 pages LaTeX including 7 postscript figures
Scientific paper
10.1016/S0375-9474(99)00412-1
Coherent pi0 photo- and electroproduction on 4He and 12C nuclei is investigated in the framework of a distorted wave impulse approximation in momentum space. The elementary process is described by the recently developed unitary isobar model. Medium effects are considered by introducing a phenomenological Delta self-energy. The recent experimental data for 4He and 12C can be well described over a wide range of energies and emission angles by the assumption that the Delta-nuclear interaction saturates.
Drechsel Dieter
Kamalov Sabit S.
Tiator Lothar
Yang Shin Nan
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