Parity-violating electron scattering at the MAMI facility in Mainz
The strangeness contribution to the form factors of the nucleon
Institut für Kernphysik, Johannes Gutenberg Universität Mainz, J.J. Becherweg 45, 55299, Mainz, Germany
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We report here on a new measurement of the parity-violating (PV) asymmetry in the scattering of polarized electrons on unpolarized protons performed at the MAMI accelerator facility in Mainz. This experiment is the first to use counting techniques in a parity violation experiment. The kinematics of the experiment is complementary to the earlier measurements of the SAMPLE Collaboration at the MIT-Bates accelerator and the HAPPEX Collaboration at Jefferson Lab. After discussing the experimental context of the experiments, the setup at MAMI and preliminary results are presented.
© Società Italiana di Fisica and Springer-Verlag, 2003