Phenomenological description of the gamma* p cross section at low Q2

Abstract

Low Q2 photon-proton cross sections are analysed using a simple, QCD-motivated parametrisation ${\sigma }_{{\gamma }^{\star }p}\propto 1/(Q^2+Q_0^2)$, which gives a good description of the data. The Q2 dependence of the gamma* p cross section is discussed in terms of the partonic transverse momenta of the hadronic state the photon fluctuates into.

14 pages, revtex, epsfig, 2 figures

References in corpus (2)

• Measurement of the Proton Structure Function F_2 and σ_{tot}^{γ^* p} at Low Q^2 and Very Low x at HERA
• Generalized Vector Dominance and low x inelastic electron-proton scattering

Cited by in corpus (4)

• Parton-Based Gribov-Regge Theory
• Extracting the dipole cross-section from photo- and electro-production total cross-section data
• New hadrons as ultra-high energy cosmic rays
• The Description of $F_2$ at Very High Parton Densities