Berlin 2005 – wissenschaftliches Programm

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HK: Physik der Hadronen und Kerne

HK 22: Postersitzung

HK 22.3: Poster

Montag, 7. März 2005, 16:30–18:00, TU MA141

Study of the parity violation in the Δ(1232) region — •Luigi Capozza — Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, 55099 Mainz

A measurement of the parity violation asymmetry in electron-proton scattering using a polarised electron beam is performed at MAMI. So far the asymmetry has been fully extracted and interpreted for the elastic part of the observed spectrum. With the same apparatus, inelastic processes are recorded in parallel to the elastic scattering events. Contributions to the inelastic spectrum arise from processes such as resonance excitation, non-resonant pion production, radiative tail from the elastic scattering and other processes. In order to study parity violation in the excitation if the Δ(1232) resonance, it is important to recognise which phenomena are responsible for the experimental spectrum and with which magnitude. The aim of this work is a simulation including all relevant processes in order to extract an estimate of the parity violation asymmetry in the Δ(1232) region.