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Twist-2 Heavy Flavor Contributions to the Structure Function $g_2(x,Q^2)$

J. Blümlein·V. Ravindran·W. L. van Neerven
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Abstract

The twist--2 heavy flavor contributions to the polarized structure function $g_2(x,Q^2)$ are calculated. We show that this part of $g_2(x,Q^2)$ is related to the heavy flavor contribution to $g_1(x,Q^2)$ by the Wandzura--Wilczek relation to all orders in the strong coupling constant. Numerical results are presented.

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J. Blümlein, V. Ravindran, W. L. van Neerven. 2003-04-30. Twist-2 Heavy Flavor Contributions to the Structure Function $g_2(x,Q^2)$. https://doi.org/10.1103/physrevd.68.114004

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