Münster 2002 – wissenschaftliches Programm

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HK: Physik der Hadronen und Kerne

HK 9: Poster Session: Theory

HK 9.30: Poster

Dienstag, 12. März 2002, 10:30–12:45, Foyer Chemie

The influence of three body cuts on the reaction NN → NNx—a toy model study — •Andreas Motzke¹, Charlotte Elster^1,2, Christoph Hanhart¹, and Josef Speth¹ — ¹Institut für Kernphysik (Theorie), Forschungszentrum Jülich, D-52425 Jülich — ²Department of Physics and Astronomy, Ohio University, Athens, OH 45701

In recent years there is an increasing interest in meson production reactions in NN collisions. High quality data is available for a large number of different mesons. Unfortunately, several theoretical issues are still to be investigated in detail. One of those is the impact of three body cuts on the reaction cross sections. In this talk we will study the significance of NNπ–cuts on the reaction NN → NNx within a toy model developed in Ref. [1]. We discuss the numerical methods used and compare the exact results to several approximations used in the literature. [1] C.Hanhart, G.A.Miller, F.Myhrer, T.Sato, and U.van Kolck, Phys.Rev.C 63(2001)044002.