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Electroproduction of vector mesons: factorization of end-point contributions

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Abstract.

The end-point contributions in the quark longitudinal momentum fraction of the virtual photon (\(\gamma^*\)) to vector meson (V) impact factor to the diffractive electroproduction amplitude can be factorized in terms of a generalized parton evolution of the target parton distribution. This result is used to model the helicity amplitudes \(\gamma^* p \rightarrow V p\) in terms of small x generalized parton distributions.

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Authors and Affiliations

  1. Naturwissenschaftlich-Theoretisches Zentrum und Institut für Theoretische Physik, Universität Leipzig, Augustusplatz 10, 04109, Leipzig, Germany

    A. Ivanov & R. Kirschner

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  1. A. Ivanov
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  2. R. Kirschner
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Correspondence to A. Ivanov.

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Received: 11 February 2003, Revised: 2 May 2003, Published online: 11 June 2003

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Ivanov, A., Kirschner, R. Electroproduction of vector mesons: factorization of end-point contributions. Eur. Phys. J. C 29, 353–364 (2003). https://doi.org/10.1140/epjc/s2003-01238-9

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