The proton and the photon, who is probing who?

Abstract

It is shown that by assuming Gribov factorization to hold at low $x$ one obtains a simple relation between the structure function of the proton and that of the photon. By interpreting an observed structure in deep inelastic scattering (DIS) of leptons on protons as belonging to the proton, one can relate it to the structure of the exchanged photon, and visa versa. Predictions are given for the structure function of real and virtual photons at low $x$ by using data on the proton structure function together with the Gribov factorization relations.

arXiv comment10 pages, including 3 figures

References in corpus (6)

• Total cross sections
• A Measurement and QCD Analysis of the Proton Structure Function $F_2(x,Q^2)$ at HERA
• First Measurement of the Deep--Inelastic Structure of Proton Diffraction
• Measurement of the F2 structure function in deep inelastic scattering using 1994 data from the ZEUS detector at HERA
• Low- and high-mass components of the photon distribution functions
• Measurement of the diffractive structure function in deep inelastic scattering at HERA

Cited by in corpus (8)

• The Photon Structure from Deep Inelastic Electron-Photon Scattering
• Survey of present data on photon structure functions and resolved photon processes
• Constraints on the dark photon from deep inelastic scattering
• NLO photon parton parametrization using ee and ep data
• The Q^2 Dependence of Dijet Cross Sections in gamma p Interactions at HERA
• Parton distributions in the photon from ${\gamma }^{\ast }\gamma$ and ${\gamma }^{\ast }p$ scattering
• NLO photon parton parametrization
• Refined analysis on the parton distribution functions of the proton