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Measurement of the transverse beam spin asymmetry in elastic electron-proton scattering and the inelastic contribution to the imaginary part of the two-photon exchange amplitude |
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| Authors: | Maas F E Aulenbacher K Baunack S Capozza L Diefenbach J Gläser B Imai Y Hammel T von Harrach D Kabuss E-M Kothe R Lee J H Sanchez-Lorente A Schilling E Schwaab D Stephan G Weber G Weinrich C Altarev I Arvieux J Elyakoubi M Frascaria R Kunne R Morlet M Ong S Vandewiele J Kowalski S Suleiman R Taylor S |
| Institution: | Institut für Kernphysik, Johannes Gutenberg-Universit?t Mainz, J.-J.-Becherweg 45, D-55099 Mainz, Germany. maas@kph.uni-mainz.de |
| Abstract: | We report on a measurement of the asymmetry in the scattering of transversely polarized electrons off unpolarized protons, A( perpendicular), at two Q2 values of 0.106 and 0.230 (GeV/c)(2) and a scattering angle of 30 degrees |
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