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

Details Meson Exchange and Pion Rescattering Contributions to the Cross Section for $pp\to ppπ^0$ Meson Exchange and Pion Rescattering Contributions to the Cross Section for $pp\to ppπ^0$

1996-07-16

arxiv.org/abs/nucl-th/9607026v1

Phys.Lett.B388:679-685,1996

Physics

Nuclear Physics

Nuclear Theory

18 pages, latex, 3 ps figures

Scientific paper

10.1016/S0370-2693(96)01225-7

Short range meson-exchange mechanisms such as $\rho\to\omega\pi^0$ contribute significantly to the amplitude for $pp\rightarrow pp\pi^0$ near threshold in addition to pion rescattering. The uncertainty of the latter contribution, which depends on poorly determined parameters, is estimated. Allowing for this uncertainty and taking the short range meson-exchange contributions into account makes it possible to reproduce the measured cross section.

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