Power Corrections in Flavour-Singlet Deep Inelastic Scattering

Abstract

We investigate the 1/Q^2 power-suppressed corrections to structure functions in the flavour-singlet channel of deep inelastic lepton scattering arising from renormalon insertions into an initial-state gluon, as obtained using the dispersive approach. The pinch technique is used as a convenient tool in the separation of contributions.

Comments: 23 pages, 7 figures