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Heavy Quarkonium Production at HERA

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New Trends in HERA Physics 1999

Part of the book series: Lecture Notes in Physics ((LNP,volume 546))

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Abstract

In this article, recent results on electro- and photoproduction of heavy vector mesons at HERA are reviewed. Various models for the inelastic and elastic production mechanisms are discussed and confronted with the measurements. Elastic production allows comparison of two distinct theoretical concepts, i.e. the Regge ansatz and models using perturbative QCD (pQCD), where the colorless exchange is modeled by multiple gluon exchange. While production of light vector mesons is well described in the Regge picture, the heavy vector meson data show clear deviations from the universal “soft” Pomeron prediction. Perturbative QCD, however, is able to reproduce the trend of the data, as well as a more general Regge fit using an additional “hard” Pomeron.

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Author information

Authors and Affiliations

  1. Max-Planck-Institut für Physik (Werner-Heisenberg-Institut), Föhringer Ring 6, D-80805, München

    Christian Kiesling

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  1. Christian Kiesling
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Editors and Affiliations

  1. Max-Planck-Institut für Physik, Föhringer Ring 6, 80805, München, Germany

    G. Grindhammer

  2. II. Institut für Theoretische Physik, Universität Hamburg, Luruper Chaussee 149, 22761, Hamburg, Germany

    B. A. Kniehl  & G. Kramer  & 

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© 2000 Springer-Verlag Berlin Heidelberg

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Kiesling, C. (2000). Heavy Quarkonium Production at HERA. In: Grindhammer, G., Kniehl, B.A., Kramer, G. (eds) New Trends in HERA Physics 1999. Lecture Notes in Physics, vol 546. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-46522-7_23

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  • DOI: https://doi.org/10.1007/3-540-46522-7_23

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-67156-5

  • Online ISBN: 978-3-540-46522-5

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