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Power Corrections and Higher Twists in QCD

Politzer, H. David (1981) Power Corrections and Higher Twists in QCD. Physica Scripta, 23 (5B). pp. 934-937. ISSN 0031-8949.

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People believe QCD to be the theory of strong interactions for a variety of reasons. Firstly, SU(3) of color is a subgroup of SU(5); second, it has instantons and a variety of other interesting topological properties; and, lastly, it agrees with high energy experiments. But on this last point, one must confess that there are a variety of obstacles that have thus far precluded any overwhelmingly convincing numerical confrontation with data. Theorists divide the sources of troubles into several classes. One of these is the power or higher twist corrections. I describe here a tentative approach of a systematic analysis of power corrections. The analysis is motivated by, and generalizes on, the operator product analysis of leptoproduction. In essence, I try to identify the appropriate set of process-independent, non-perturbative functions that characterize long-distance physics; these are to be convoluted with calculable short-distance amplitudes via an algorithm that generalizes the long distance-short distance factorization for the scaling limit.

Item Type:Article
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Politzer, H. David0000-0002-4983-6621
Additional Information:© 1980 Royal Swedish Academy of Sciences. Received August 1 1980. Accepted September 9, 1980. Work supported in part by the U.S. Department of Energy under Contract No. DE-AC-03-79ER0068 and by the Alfred P. Sloan Foundation.
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Department of Energy (DOE)DE-AC-03-79ER0068
Alfred P. Sloan FoundationUNSPECIFIED
Issue or Number:5B
Record Number:CaltechAUTHORS:20161004-090333142
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:70795
Deposited By: Joy Painter
Deposited On:04 Oct 2016 18:40
Last Modified:05 Nov 2019 18:37

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