Elastic photoproduction of J/ψ and Υ mesons at HERA

C. Adloff, V. Andreev, B. Andrieu, V. Arkadov, A. Astvatsatourov, I. Ayyaz, A. Babaev, J. Bähr, P. Baranov, E. Barrelet, W. Bartel, U. Bassler, P. Bate, A. Beglarian, O. Behnke, C. Beier, A. Belousov, T. Benisch, C. Berger, G. BernardiT. Berndt, J. C. Bizot, K. Borras, V. Boudry, W. Braunschweig, V. Brisson, H. B. Bröker, D. P. Brown, W. Brückner, P. Bruel, D. Bruncko, J. Bürger, F. W. Büsser, A. Bunyatyan, H. Burkhardt, A. Burrage, G. Buschhorn, A. J. Campbell, J. Cao, T. Carli, S. Caron, E. Chabert, D. Clarke, B. Clerbaux, C. Collard, J. G. Contreras, J. A. Coughlan, M. C. Cousinou, B. E. Cox, G. Cozzika, J. Cvach, J. B. Dainton, W. D. Dau, K. Daum, M. David, M. Davidsson, B. Delcourt, N. Delerue, R. Demirchyan, A. de Roeck, E. A. de Wolf, C. Diaconu, P. Dixon, V. Dodonov, J. D. Dowell, A. Droutskoi, C. Duprel, G. Eckerlin, D. Eckstein, V. Efremenko, S. Egli, R. Eichler, F. Eisele, E. Eisenhandler, M. Ellerbrock, E. Elsen, M. Erdmann, W. Erdmann, P. J W Faulkner, L. Favart, A. Fedotov, R. Felst, J. Ferencei, S. Ferron, M. Fleischer, G. Flügge, A. Fomenko, I. Foresti, J. Formánek, J. M. Foster, G. Franke, E. Gabathuler, K. Gabathuler, J. Garvey, J. Gassner, J. Gayler, R. Gerhards, S. Ghazaryan, L. Goerlich, N. Gogitidze, M. Goldberg, C. Goodwin, C. Grab, H. Grässler, T. Greenshaw, G. Grindhammer, T. Hadig, D. Haidt, L. Hajduk, T. Hauschildt, W. J. Haynes, B. Heinemann, G. Heinzelmann, R. C W Henderson, S. Hengstmann, H. Henschel, R. Heremans, G. Herrera, I. Herynek, M. Hilgers, K. H. Hiller, C. D. Hilton, J. Hladky, P. Höting, D. Hoffmann, W. Hoprich, R. Horisberger, S. Hurling, M. Ibbotson, C. Işsever, M. Jacquet, M. Jaffre, L. Janauschek, D. M. Jansen, X. Janssen, V. Jemanov, L. Jönsson, D. P. Johnson, M. A S Jones, H. Jung, H. K. Kästli, D. Kant, M. Kapichine, M. Karlsson, O. Karschnick, O. Kaufmann, M. Kausch, F. Keil, N. Keller, J. Kennedy, I. R. Kenyon, S. Kermiche, C. Kiesling, M. Klein, C. Kleinwort, G. Knies, B. Koblitz, H. Kolanoski, S. D. Kolya, V. Korbel, P. Kostka, S. K. Kotelnikov, M. W. Krasny, H. Krehbiel, J. Kroseberg, D. Krücker, K. Krüger, A. Küpper, T. Kuhr, T. Kurča, R. Kutuev, W. Lachnit, R. Lahmann, D. Lamb, M. P J Landon, W. Lange, T. Lǎstovička, A. Lebedev, B. Leibner, R. Lemrani, V. Lendermann, S. Levonian, M. Lindstroem, B. List, E. Lobodzinska, B. Lobodzinski, N. Loktionova, V. Lubimov, S. Lüders, D. Lüke, L. Lytkin, N. Magnussen, H. Mahlke-Krüger, N. Malden, E. Malinovski, I. Malinovski, R. Maraček, P. Marage, J. Marks, R. Marshall, H. U. Martyn, J. Martyniak, S. J. Maxfield, A. Mehta, K. Meier, P. Merkel, F. Metlica, A. Meyer, H. Meyer, J. Meyer, P. O. Meyer, S. Mikocki, D. Milstead, T. Mkrtchyan, R. Mohr, S. Mohrdieck, M. N. Mondragon, F. Moreau, A. Morozov, J. V. Morris, D. Müller, K. Müller, P. Murín, V. Nagovizin, B. Naroska, J. Naumann, T. Naumann, I. Négri, G. Nellen, P. R. Newman, T. C. Nicholls, F. Niebergall, C. Niebuhr, O. Nix, G. Nowak, T. Nunnemann, J. E. Olsson, D. Ozerov, V. Panassik, C. Pascaud, G. D. Patel, E. Perez, J. P. Phillips, D. Pitzl, R. Pöschl, I. Potachnikova, B. Povh, K. Rabbertz, G. Rädel, J. Rauschenberger, P. Reimer, B. Reisert, D. Reyna, S. Riess, E. Rizvi, P. Robmann, R. Roosen, A. Rostovtsev, C. Royon, S. Rusakov, K. Rybicki, D. P C Sankey, J. Scheins, F. P. Schilling, S. Schleif, P. Schleper, D. Schmidt, L. Schoeffel, A. Schöning, T. Schörner, V. Schröder, H. C. Schultz-Coulon, K. Sedlák, F. Sefkow, V. Shekelyan, I. Sheviakov, L. N. Shtarkov, G. Siegmon, P. Sievers, Y. Sirois, T. Sloan, P. Smirnov, V. Solochenko, Y. Soloviev, V. Spaskov, A. Specka, H. Spitzer, R. Stamen, J. Steinhart, B. Stella, A. Stellberger, J. Stiewe, U. Straumann, W. Struczinski, M. Swart, M. Tǎsevsky, V. Tchernyshov, S. Tchetchelnitski, G. Thompson, P. D. Thompson, N. Tobien, D. Traynor, P. Truöl, G. Tsipolitis, J. Turnau, J. E. Turney, E. Tzamariudaki, S. Udluft, A. Usik, S. Valkár, A. Valkárová, C. Vallée, P. van Mechelen, Y. Vazdik, S. von Dombrowski, K. Wacker, R. Wallny, T. Walter, B. Waugh, G. Weber, M. Weber, D. Wegener, Z. Wegner, T. Wengler, M. Werner, G. White, S. Wiesand, T. Wilksen, M. Winde, G. G. Winter, C. Wissing, M. Wobisch, H. Wollatz, E. Wünsch, A. C. Wyatt, J. Žáček, J. Zálešák, Z. Zhang, A. Zhokin, F. Zomer, J. Zsembery, M. zur Nedden

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Cross sections for elastic photoproduction of J/ψ and Υ mesons are presented. For J/ψ mesons the dependence on the photon-proton centre-of-mass energy W(γp) is analysed in an extended range with respect to previous measurements of 26 ≤ W(γp) ≤ 285 GeV. The measured energy dependence is parameterized as σ(γp) α W(γp)/δ with δ = 0.83 ± 0.07. The differential cross section dσ/dt for J/ψ mesons is derived, its dependence on W(γp) and on t is analysed and the effective trajectory (in terms of Regge theory) is determined to be α(t) = (1.27 ± 0.05) + (0.08 ± 0.17) · t/GeV2. Models based on perturbative QCD and on pomeron exchange are compared to the data. (C) 2000 Elsevier Science B.V.
    Original languageEnglish
    Pages (from-to)23-35
    Number of pages12
    JournalPhysics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics
    Volume483
    Issue number1-3
    DOIs
    Publication statusPublished - 15 Jun 2000

    Keywords

    • High Energy Physics - Experiment

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