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Power Corrections to Fragmentation Functions in Flavour-Singlet Deep Inelastic Scattering

Graham Smye

hep-pharXiv:hep-ph/9812251

Abstract

We investigate the power-suppressed corrections to fragmentation 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. As in non-singlet deep inelastic scattering we find that the leading corrections are proportional to 1/Q2.

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