A Comprehensive Approach to Structure Functions

Abstract

We present a model based on a dipole picture with a hard and a soft pomeron in which large dipoles couple to the soft pomeron and small dipoles couple to the hard pomeron. The parameters in the model are fixed by proton-proton scattering and the proton structure function. The model is then applied successfully to the proton charm structure function, the proton longitudinal structure function, J/psi photoproduction, deep virtual Compton scattering, the real photon-proton total cross section, the real photon-photon cross section, and the photon structure function. Differences between our predictions and data on charm production in real photon-photon interactions and the virtual gamma-gamma cross section are discussed.

30 pages, 18 figures

References in corpus (4)

• Deep-Inelastic Inclusive ep Scattering at Low x and a Determination of alpha_s
• Measurement of Deeply Virtual Compton Scattering at HERA
• A Unified Model of Exclusive ${\rho }^0$, $\varphi$ and $\jpsi$ Electroproduction
• Study of the e+e- -> Z gamma gamma -> q q~ gamma gamma Process at LEP

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