Beam asymmetry $\Sigma$ measurements on the ${\pi }^{-}$ photoproduction off neutrons

G. Mandaglio, F. Mammoliti, M. Manganaro +30

The $\Sigma$ beam asymmetry in the photoproduction of negative pions from quasi-free neutrons in a deuterium target was measured at Graal in the energy interval 700 - 1500 MeV and a wid…