A unitary model for structure functions and diffractive production at small x

Details A unitary model for structure functions and diffractive production at small x A unitary model for structure functions and diffractive production at small x

2000-05-05

arxiv.org/abs/hep-ph/0005049v1

Nucl.Phys. B593 (2001) 336-358

Physics

High Energy Physics

High Energy Physics - Phenomenology

43 pages, latex, 15 postscript figures

Scientific paper

10.1016/S0550-3213(00)00555-1

We propose a unified approach which describes both structure functions in the small-$x$ region and diffractive production in $\gamma^*p$-interactions. It is shown that the model, based on reggeon calculus and a quark-parton picture of the interaction, gives a good description of available experimental data in a broad region of $Q^2$ (including $Q^2 =0$) with a single Pomeron of intercept $\alpha_P(0) = 1.2$. Predictions for very small $x$ are given and the problem of saturation of parton densities is discussed.

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