Gießen 2007 – scientific programme
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HK: Fachverband Physik der Hadronen und Kerne
HK 17: Elektromagnetische und Hadronische Sonden
HK 17.6: Talk
Tuesday, March 13, 2007, 18:15–18:30, A
Beam Single Spin Asymmetry in photon and pion electroproduction in the Delta resonance region — •Luca Doria für die A1 Kollaboration — Johannes Gutenberg-Universität, Mainz, Germany
The beam single spin asymmetry in the electroproduction of photons (or virtual compton scattering) and pions is measured at MAMI. The measurements are done in the Delta resonance region at Q2=0.35 (GeV/c)2. The experiment is performed using the three spectrometer setup of the A1 Collaboration in conjunction with the highly polarized and 100% duty-cycle beam delivered by the MAMI accelerator. The results are compared to the Dispersion Relation model for photon electroproduction and to the MAID model for pion electroproduction. A qualitative agreement between data and theory is found.