Nonperturbative and Perturbative Aspects of Photo- and Electroproduction of Vector Mesons

Details Nonperturbative and Perturbative Aspects of Photo- and Electroproduction of Vector Mesons Nonperturbative and Perturbative Aspects of Photo- and Electroproduction of Vector Mesons

2006-10-24

arxiv.org/abs/hep-ph/0610311v1

Eur.Phys.J.C51:83-101,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

38 pages, 39 figures

Scientific paper

10.1140/epjc/s10052-007-0293-8

We discuss various aspects of vector meson production, first analysing the interplay between perturbative and nonperturbative aspects of the QCD calculation. Using a general method adapted to incorporate both perturbative and nonpertubative aspects, we show that nonperturbative effects are important for all experimentally available values of the photon virtuality Q2. We compare the huge amount of experimental information now available with our theoretical results obtained using a specific nonperturbative model without free parameters, showing that quite simple features are able to explain the data.

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