Proton structure functions in the dipole picture of BFKL dynamics

The F 2, F G, R = F L F T proton structure functions are derived in the QCD dipole picture. Assuming k T and renormalization-group factorization, we relate deep-inelastic proton scattering to deep-inelastic onium scattering. We get a three-parameter fit of the 1994 H1 data in the low- x, moderate Q...

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Published inPhysics letters. B Vol. 385; no. 1; pp. 357 - 364
Main Authors Navelet, H, Peschanski, R, Royon, Ch, Wallon, S
Format Journal Article
LanguageEnglish
Published Elsevier B.V 26.09.1996
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Summary:The F 2, F G, R = F L F T proton structure functions are derived in the QCD dipole picture. Assuming k T and renormalization-group factorization, we relate deep-inelastic proton scattering to deep-inelastic onium scattering. We get a three-parameter fit of the 1994 H1 data in the low- x, moderate Q 2 range. The ratios F G F 2 and R are predicted without further adjustment. The dipole picture of BFKL dynamics is shown to provide a relevant model for quantitatively describing the proton structure functions at HERA. The predictions for F 2 and F G are compatible with the next-to-leading order DGLAP analysis, while R is expected to be significantly lower at very small x.
ISSN:0370-2693
1873-2445
DOI:10.1016/0370-2693(96)00889-1