More on the Burkhardt-Cottingham Sum Rule in QCD
classification
✦ hep-ph
keywords
burkhardt-cottinghamruleconfirmcontextcorrectionscorrespondseffectsexpansion
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The QCD higher order effects to the polarized structure function $g_2(x, Q^2 )$ are reanalyzed for massive quarks in the context of the operator product expansion. We confirm that the lowest moment of $g_2 (x, Q^2 )$ which corresponds to the Burkhardt-Cottingham sum rule does {\sl not} suffer from radiative corrections in perturbative QCD.
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