Abstract
A measurement of the weak form factor of the proton allows a separation of the strangeness contribution to the electromagnetic form factors. The weak form factor is accessed experimentally by the measurement of a parity violating (PV) asymmetry in the scattering of polarized electrons on unpolarized protons. We performed such measurements with the setup of the A4-experiment at the MAMI accelerator facility in Mainz. The role of strangeness in low energy nonperturbative QCD is discussed. The A4-experiment is presented as well as the results on the strangeness form factors which have been measured at two Q 2-values. The plans for backward angle measurements at the MAMI facility are presented.
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Maas, F.E. (2006). Parity-violating electron scattering at the MAMI facility in Mainz. In: Arenhövel, H., Backe, H., Drechsel, D., Friedrich, J., Kaiser, KH., Walcher, T. (eds) Many Body Structure of Strongly Interacting Systems. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-36754-3_12
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DOI: https://doi.org/10.1007/3-540-36754-3_12
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