Meson Exchange and Pion Rescattering Contributions to the Cross Section for $pp\to pp{\pi }^0$

U. van Kolck, G. A. Miller, D. O. Riska

Short range meson-exchange mechanisms such as $\rho \to \omega {\pi }^0$ contribute significantly to the amplitude for $pp\to pp{\pi }^0$ near threshold in addition to pion rescattering. The un…