Off-Mass-Shell πN Scattering and pp pp π0
M. T. Pena, S. A. Coon, J. Adam, A. Stadler
Abstract
We adapt the off-shell πN amplitude of the Tucson-Melbourne three-body force to the half-off-shell amplitude of the pion rescattering contribution to pp pp π0 near threshold. This pion rescattering contribution, together with the impulse term, provides a good description of the data when the half-off-shell amplitude is linked to the phenomenological invariant amplitudes obtained from meson factory πN scattering data.
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