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arXiv · hep-ph/0301182

Electroproduction of vector mesons - factorization of end-point contributions

A. Ivanov·R. Kirschner
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Abstract

The end-point contributions in the quark longitudinal momentum fraction of the virtual photon ($γ^*$) 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. The result is used to model the helicity amplitudes $γ^* p \to V p$ in terms of small $x$ generalized parton distributions.

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A. Ivanov, R. Kirschner. 2003-01-21. Electroproduction of vector mesons - factorization of end-point contributions. https://doi.org/10.1140/epjc%2Fs2003-01238-9

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