Bounds on ratios of DIS structure functions from the color dipole picture

2006/11/30 by Carlo Ewerz, Otto Nachtmann · 2 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex #hep-ph

paper · pdf · doi:10.1016/j.physletb.2007.03.028

published as Phys.Lett.B648:279-283,2007 · 10 pages, 4 figures; v2: comments and reference added, journal version

openalex publication_date 2007/03/22 · arxiv created 2007/06/05 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We derive bounds on ratios of deep inelastic nucleon structure functions from the color dipole picture of high energy photon-hadron scattering. We find an upper bound on the ratio R=sigma_L/sigma_T of the total cross sections for longitudinally and transversely polarized photons. We further obtain bounds on the ratio of deep inelastic structure functions F₂ taken at the same energy but at different photon virtualities. It is shown that these bounds can be used to constrain the range of applicability of the dipole picture.

Citations

• The ALLM parameterization of sigma_tot(gamma* p) - an update
• Towards a nonperturbative foundation of the dipole picture: II. High energy limit
• A measurement of differential cross-sections and nucleon structure functions in charged-current neutrino interactions on iron

Cited by

• On the longitudinal structure function in the dipole model
• Collider physics at HERA