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arXiv · hep-ph/9706419

Examination of Wandzura-Wilczek Relation for $g_2(x,Q^2)$ in pQCD

A. Harindranath·Wei-Min Zhang
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Abstract

In order to examine the validity of Wandzura-Wilczek relation for the polarized DIS structure function $g_2(x,Q^2)$, we use the light-front time-ordering pQCD to calculate $g_2(x,Q^2)$ at order $α_s$ on a quark target. We find that the study of the transverse polarized structure function in pQCD is only meaningful if we begin with massive quarks. The result shows that the Wandzura-Wilczek relation for $g_2(x,Q^2)$ is strongly violated by the quark mass in pQCD.

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A. Harindranath, Wei-Min Zhang. 1997-06-19. Examination of Wandzura-Wilczek Relation for $g_2(x,Q^2)$ in pQCD. https://doi.org/10.1016/s0370-2693(97)00771-5

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