Measurement of J/ψ photoproduction at large momentum transfer at HERA

Sergei V. Chekanov, Malcolm Derrick, S. Magill, Brian Musgrave, D. Nicholass, J. Repond, R. Yoshida, M.C.K. Mattingly, P. Antonioli, Giacomo Bari

107 more authors

L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, F. Cindolo, M. Corradi, GIUSEPPE IACOBUCCI, A. Margotti, R. Nania, Alessandro Polini, S. Antonelli, M. Basile, M. Bindi, L. Cifarelli, A. Contin, S. De Pasquale, G. Sartorelli, A. Zichichi, D. Bartsch, Ian C. Brock, H. Hartmann, E. Hilger, H.‐P. Jakob, M. Jüngst, A.-E. Nuncio-Quiroz, E. Paul, U. Samson, V. Schönberg, R. Shehzadi, M. Wlasenko, J. D. Morris, M. Kaur, P. Kaur, I. Singh, M. Capua, Salvatore Fazio, Anna Mastroberardino, Marco Schioppa, G. Susinno, E. ̃Tassi, J. Y. Kim, Z. A. Ibrahim, F. Mohamad Idris, B. Kamaluddin, W. A. T. Wan Abdullah, Y. Ning, Z. Ren, F. J. Sciulli, J. J. Chwastowski, A. Eskreys, J. Figiel, A. Galas, K. Olkiewicz, B. Pawlik, P. Stopa, L. Zawiejski, L. Adamczyk, T. Bołd, I. Grabowska-Bołd, Danuta Kisielewska, J. Łukasik, M. Przybycień, L. Suszycki, A. Kotański, W. Słomiński, O. Bachynska, O. Behnke, J. Behr, U. Behrens, C. Blohm, K. Borras, D. Bot, R. Ciesielski, N. Coppola, S. Fang, A. Geiser, P. Göttlicher, J. Grebenyuk, I. M. Gregor, T. Haas, W. Hain, A. Hüttmann, F. Januschek, B. Kahle, I. I. Katkov, U. Klein, U. Kötz, H. Kowalski, V. Libov, M. Lisovyi, M. Arneodo, V. Aushev, Fernando Barreiro, S. Boutle, B. Brzozowska, Jonathan Mark Butterworth, J. Ciborowski, A. M. Cooper-Sarkar, F. Corriveau, M. Costa, S. Dusini, E. Gallo, Grzegorz Grzelak, Claire Gwenlan, Matthew Wing, Aleksander Filip Zarnecki, E. M. Lobodzinska

Journal of High Energy Physics, 2010

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DOI 10.1007/jhep05(2010)085
Data confidence 85 high
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Abstract

The proton-dissociative diffractive photoproduction of J / ψ mesons has been studied in ep collisions with the ZEUS detector at HERA using an integrated luminosity of 112 pb −1 . The cross section is presented as a function of the photon-proton centre-of-mass energy and of the squared four-momentum transfer at the proton vertex. The results are compared to perturbative QCD calculations.