Nonperturbative and perturbative aspects of photo- and electroproduction of vector mesons

Abstract

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.

arXiv comment19 pages

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• Predicting the isospin asymmetry in $B->K\ast \gamma$ using holographic AdS/QCD Distribution Amplitudes for the K*
• Vector meson production at low x from gauge/gravity duality
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• Electroproduction of heavy vector mesons using holographic QCD: from near threshold to high energy regimes
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• Vector meson production at HERA
• Analytical representation for amplitudes and differential cross section of pp elastic scattering at 13 TeV
• Nonlinearity of vacuum reggeons and exclusive diffractive production of vector mesons at HERA
• Universality in the Electroproduction of Vector Mesons