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

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/Q^2.

15 pages, 3 figures

References in corpus (14)

• Analytic Model for the QCD Running Coupling with Universal ${\bar{\alpha }}_s(0)$ Value
• Power Corrections to Event Shape Distributions
• On the universality of the Milan factor for 1/Q power corrections to jet shapes
• Universality of 1/Q corrections to jet-shape observables rescued
• QCD Power Corrections from a Simple Model for the Running Coupling
• Phenomenology of Power Corrections in Fragmentation Processes in e^+ e^- Annihilation
• Renormalon Model Predictions for Power-Corrections to Flavour Singlet Deep Inelastic Structure Functions
• Renormalons as a Bridge between Perturbative and Nonperturbative Physics
• Power Corrections to Event Shapes in Deep Inelastic Scattering
• Two-loop enhancement factor for 1/Q corrections to event shapes in deep inelastic scattering
• Analyticity and Minimality of Nonperturbative Contributions in Perturbative region for ${\bar{\alpha }}_s$
• Evolution of ep Fragmentation and Multiplicity Distributions in the Breit Frame
• Power Corrections to Fragmentation Functions in Non-Singlet Deep Inelastic Scattering
• Effective QCD coupling and power corrections to photon-photon scattering

Cited by in corpus (1)

• Power Corrections in Flavour-Singlet Deep Inelastic Scattering