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

Carlo Ewerz·Otto Nachtmann
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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.

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Carlo Ewerz, Otto Nachtmann. 2007-06-05. Bounds on Ratios of DIS Structure Functions from the Color Dipole Picture. https://doi.org/10.1016/j.physletb.2007.03.028

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