QCD Saturation and Photoproduction on Proton and Nuclei Targets

Details QCD Saturation and Photoproduction on Proton and Nuclei Targets QCD Saturation and Photoproduction on Proton and Nuclei Targets

2003-04-16

arxiv.org/abs/hep-ph/0304166v2

Phys.Rev.D68:054008,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

A comparison of the model with Ca target is added. Accepted for publication in PRD

Scientific paper

10.1103/PhysRevD.68.054008

We calculate inclusive photoproduction cross-sections for both proton and nuclei targets, using a saturation model derived from an approximate solution to the Balitsky-Kovchegov nonlinear evolution equation. This paper extends our hypothesis, that one can successfully use the dipole picture and saturation models to describe soft processes, instead of the soft Pomeron Regge parametrization. Our fit is compatible with our previous fit to DIS data, and utilizes the same phenomenological parameters as in our paper devoted to soft hadronic interactions. Using the Glauber formalism, and no additional parameters, we calculate the cross-sections for photoproduction on various nuclei, and compare our results with the relevant data.

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