The reaction $pp \to ppπ^0$ near threshold

Details The reaction $pp \to ppπ^0$ near threshold The reaction $pp \to ppπ^0$ near threshold

1995-08-02

arxiv.org/abs/nucl-th/9508005v1

Phys.Lett. B358 (1995) 21-26

Physics

Nuclear Physics

Nuclear Theory

Scientific paper

10.1016/0370-2693(95)00998-Z

We perform a momentum-space calculation of the reaction $pp \rightarrow pp\pi ^0$ near threshold. Direct production and pion rescattering are taken into account. For the latter a T-matrix obtained from a microscopic model of the $\pi N$ interaction is employed. The effects of some approximations commonly used in studies of $ pp \rightarrow pp\pi ^0$ \ are discussed. We find that those approximations overestimate the cross section and also modify its energy dependence. We obtain a significant contribution from rescattering, but not nearly enough to describe the data.

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