Measurement of the generalized polarizabilities of the proton in virtual Compton scattering at MAMI
Department of Subatomic and Radiation Physics, Ghent University, 9000, Ghent, Belgium
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Accepted: 1 November 2006
Published online: 26 February 2007
Virtual Compton scattering off the proton has been studied at Q 2 = 0.33 (GeV/c)2 at the MAMI accelerator in Mainz (Germany). The goal of the experiment is to measure the generalized polarizabilities (GPs) of the proton using the double polarized e p→e' p'γ reaction. This paper reports the measurement of the unpolarized photon electroproduction cross-section for the new data and the extraction of two linear combinations of GPs, which are essential for the analysis of the double spin asymmetry.
PACS: 13.60.Fz Elastic and Compton scattering – / 14.20.Dh Protons and neutrons –
© Società Italiana di Fisica and Springer-Verlag, 2007