Bochum 1998 – wissenschaftliches Programm

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HK: Hadronen und Kerne

HK 56: Postersitzung

HK 56.13: Poster

Mittwoch, 18. März 1998, 17:00–19:00, Foyer

Monte-Carlo-Simulations of an experimental setup for quasi-free π⁰ photoproduction on the neutron — •K. Kossert, M. Schumacher, B. Seitz, and F. Wissmann — II. Physikalisches Institut der Georg-August-Universit"at G"ottingen, D-37073 G"ottingen, Germany

Quasi-free π⁰–photoproduction on the neutron bound in the deuteron is a very promising method to investigate the reaction γ n → n π⁰ in the Δ–resonance region. The results of such an experiment enter into the multipole analysis of the pion photoproduction, and when using circularly polarized photons and a polarized target, they are an important part in determining the Gerasimov-Drell-Hearn (GDH) sum rule of the neutron. To this aim a detector setup with a high detection efficiency for both π⁰ and the neutron, has to be build. We present Monte-Carlo simulations of a combined TAPS-TOF setup for an experiment at MAMI. Our simulations were done with the GEANT code. An event generator was developed using the differential cross sections of the reaction γ d → π⁰ n p in the quasi-free region [1].

[1] M.I. Levchuk, V.A. Petrun’kin, M. Schumacher π⁰–photoproduction on quasi-free neutron in the reaction γ d → π⁰ n p in the Δ -region Zeitschrift f"ur Physik A 355,317-326, 1996