Hard Exclusive Electroproduction of ${\pi }^{+}{\pi }^{-}$ Pairs

The HERMES Collaboration, A. Airapetian

Hard exclusive electroproduction of ${\pi }^{+}{\pi }^{-}$ pairs off hydrogen and deuterium targets has been studied by the HERMES experiment at DESY. Legendre moments $<P_1>$ and $<P_3>$ of the…