Gluon Contribution to the Transverse Spin Structure Function g2
A. V. Belitsky, A. V. Efremov, O. V. Teryaev
Abstract
We consider the twist-3 gluon contribution to the transverse spin structure function g2.We find that the Burkhardt-Cottingham sum rule is satisfied. The additional nonlocal operators appear in the moments of g2 which were absent in previous analysis of Bukhvostov, Kuraev and Lipatov.
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