Beam-Helicity Asymmetries in Double Pion Photoproduction off the Proton

D. Krambrich, F. Zehr, A. Fix +58

Beam-helicity asymmetries have been measured at the MAMI accelerator in Mainz in the three isospin channels $\vec{\gamma }p\to {\pi }^{+}{\pi }^{0}n$, $\vec{\gamma }p\to {\pi }^0{\pi }^{0}p$ and $\vec{\gamma }p\to {\pi }^{+}{\pi }^{-}p$…