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arXiv · hep-ph/9705459

Evolution Kernels for Light-Ray Operators: Twist 2 and Twist 3 Contributions

J. Blümlein·B. Geyer·D. Robaschik
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Abstract

The general evolution kernels of the twist 2 light-ray operators for unpolarized and polarized deep inelastic scattering are calculated in ${\cal O}(α_s)$. From these evolution kernels a series of special evolution equations can be derived, among them the Altarelli-Parisi equations and the evolution equation for the meson wave function. In the case of twist 3 the results of Balitzki and Braun are confirmed.

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J. Blümlein, B. Geyer, D. Robaschik. 1997-05-29. Evolution Kernels for Light-Ray Operators: Twist 2 and Twist 3 Contributions. https://doi.org/10.1063/1.53680

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