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Special Issue: Conference in Honor of Prof. Anatoly Efremov's 75th Birthday CelebrationNo Access

LORENTZ INVARIANCE RELATIONS AND WANDZURA–WILCZEK APPROXIMATION

Institut für Theoretische Physik II, Ruhr-Universität Bochum, 44780 Bochum, Germany

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,

Department of Physics, Barton Hall, Temple University, Philadelphia, PA 19122-6082, USA

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Department of Physics, University of Connecticut, Storrs, CT 06269, USA

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https://doi.org/10.1142/S0217732309001169Cited by:7 (Source: Crossref)

Abstract

A complete list of the so-called Lorentz invariance relations between parton distribution functions is given and some of their consequences are discussed, such as the Burkhardt-Cottingham sum rule. The violation of these relations is considered in a model independent way. It is shown that several Lorentz invariance relations are not violated in a generalized Wandzura–Wilczek approximation, indicating that numerically their violation may be small.

Keywords:

PACS: 13.88.+e, 13.85.Ni, 13.60.-r

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Vol. 24, No. 35n37

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