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Photoproduction within the two-component Dual Parton Model: Amplitudes and cross sections

  • Theoretical Physics
  • Published:
Zeitschrift für Physik C Particles and Fields

Abstract

In the framework of the Dual Parton Model an approximation scheme to describe high energy photoproduction processes is presented. Based on the distinction between direct, resolved soft, and resolved hard interaction processes we construct effective impact parameter amplitudes. In order to treat low mass diffraction within the eikonal formalism in a consistent way a phenomenological ansatz is proposed. The free parameters of the model are determined by fits to high energy hadro- and photoproduction cross sections. We calculate the partial photoproduction cross sections and discuss predictions of the model at HERA energies. Using hadro- and photoproduction data together, the uncertainties of the model predictions are strongly reduced.

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Authors and Affiliations

  1. Fachbereich Physik, Universität Leipzig, D-04109, Leipzig, Germany

    R. Engel

  2. Fachbereich Physik, Universität Siegen, D-57068, Siegen, Germany

    R. Engel

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  1. R. Engel
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Engel, R. Photoproduction within the two-component Dual Parton Model: Amplitudes and cross sections. Z. Phys. C - Particles and Fields 66, 203–214 (1995). https://doi.org/10.1007/BF01496594

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  • DOI: https://doi.org/10.1007/BF01496594

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