Bounds on Ratios of DIS Structure Functions from the Color Dipole Picture

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 F_2 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.

10 pages, 4 figures; v2: comments and reference added, journal version

References in corpus (1)

• Towards a Nonperturbative Foundation of the Dipole Picture: II. High Energy Limit

Cited by in corpus (10)

• Collider Physics at HERA
• Towards a Nonperturbative Foundation of the Dipole Picture: II. High Energy Limit
• On the Range of Validity of the Dipole Picture
• On the Energy Dependence of the Dipole-Proton Cross Section in Deep Inelastic Scattering
• Color dipole cross section and inelastic structure function
• Compatibility of phenomenological dipole cross sections with the Balitsky-Kovchegov equation
• The color dipole model bounds with the gluon-gluon recombination correction
• Heavy quark structure functions from unifying the color dipole picture and double asymptotic scaling approaches
• Reduced cross section and gluon distribution in a momentum-space approach
• Investigation of the ratio $\frac{{\sigma }_r}{F_2}(Q^2/s,Q^2)$ in the momentum-space approach