Twist-2 Heavy Flavor Contributions to the Structure Function g2(x,Q2)g_2(x,Q^2)

preprint2003arXivOpen access

Abstract

The twist--2 heavy flavor contributions to the polarized structure function g2(x,Q2)g_2(x,Q^2) are calculated. We show that this part of g2(x,Q2)g_2(x,Q^2) is related to the heavy flavor contribution to g1(x,Q2)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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