Power Corrections to Flavour-Singlet Structure Functions

Abstract

We investigate the power-suppressed corrections to structure functions in flavour singlet deep inelastic lepton scattering, to complement the previous results for the non-singlet contribution. Our method is a dispersive approach based on an analysis of Feynman graphs containing massive gluons; and our results agree with those obtained from leading infrared renormalon contributions. As in non-singlet deep inelastic scattering we find that the leading corrections are proportional to 1/Q^2. We find that the singlet contribution becomes important at small x.

13 pages, 3 figures

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Cited by in corpus (4)

• The Running Coupling BFKL Anomalous Dimensions and Splitting Functions
• Power-like corrections and the determination of the gluon distribution
• Power Corrections in Flavour-Singlet Deep Inelastic Scattering
• 1/Q^2 corrections in DIS fragmentation functions