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Gluon contribution to the structure function g_2(x,Q^2)
V. M. Braun, G. P. Korchemsky, A. N. Manashov
We calculate the one-loop twist-3 gluon contribution to the flavor-singlet structure function g_2(x,Q^2) in polarized deep-inelastic scattering and find that it is dominated by the…
On power corrections to the event shape distributions in QCD
G. P. Korchemsky, S. Tafat
We study power corrections to the differential thrust, heavy jet mass and C-parameter distributions in the two-jet kinematical region in e^+e^- annihilation. We argue that away fro…
Evolution of twist-three parton distributions in QCD beyond the large N_c limit
V. M. Braun, G. P. Korchemsky, A. N. Manashov
We formulate a consistent 1/N_c^2 expansion of the QCD evolution equations for the twist-three quark distributions g_2(x,Q^2), h_L(x,Q^2) and e(x,Q^2) based on the interpretation o…