Measurement of the Helicity Asymmetry $E$ for the reaction $\gamma p\to {\pi }^{0}p$

TAPS collaboration, M. Gottschall, F. Afzal +66

A measurement of the double-polarization observable $E$ for the reaction $\gamma p\to {\pi }^{0}p$ is reported. The data were taken with the CBELSA/TAPS experiment at the ELSA facility in Bonn…