QCD Renormalons and Higher Twist Effects

Abstract

I give a short review of the relation of infrared renormalons in QCD and higher twist effects, with the emphasis on possible applications. In particular, I present estimates of renormalon-induced uncertainties in deep inelastic sum rules and explain how the renormalons can potentially be used to unravel the structure of nonperturbative effects in complicated situations and to indicate possible systematic sources of large perturbative corrections.

7 pages, LaTex, to appear in the Proceedings of the XXXth Rencontres de Moriond, ``QCD and High Energy Hadronic Interactions'', Les Arcs, France, March 1995

Cited by in corpus (10)

• Large-Momentum Effective Theory
• Optimal Renormalization Scale and Scheme for Exclusive Processes
• Renormalization-Scheme Dependence of Pade Summation in QCD
• IR-Renormalon Contribution to the Longitudinal Structure Function $F_L$
• Renormalon Model Predictions for Power-Corrections to Flavour Singlet Deep Inelastic Structure Functions
• Phenomenology of IR-renormalons in inclusive processes
• Renormalon approach to higher-twist distribution amplitudes and the convergence of the conformal expansion
• Scale- and scheme-independent extension of Pade approximants; Bjorken polarized sum rule as an example
• Universal Nonperturbative Effects in Event Shapes from Soft-Collinear Effective Theory
• Exclusive Photon-Photon Processes