Diffractive photoproduction of J/ψ mesons with large momentum transfer at HERA

C Adloff, Yves Coppens, John Dowell, Peter Faulkner, Yves Fleming, John Garvey, Carrie Johnson, Ian Kenyon, David Lamb, Paul Newman, Syed Rizvi, Paul Thompson, Ethan-Etienne Woehrling, Oliver Henshaw