Study of the pion trajectory in the photoproduction of leading neutrons at HERA

Study of the pion trajectory in the photoproduction of leading neutrons at HERA Dahkki Chekanov, S, Derrick, M, Krakauer, D, Loizides, J, Magill, S, Miglioranzi, S, Musgrave, B, Repond, J, Yoshida, R, Mattingly, M, Antonioli, P, Bari, G, Basile, M, Bellagamba, L, Boscherini, D, Bruni, A, Bruni, G, Cara Romeo, G, Cifarelli, L, Cindolo, F, Contin, A, Corradi, M, De Pasquale, S, Giusti, P, Iacobucci, G