Twist-4 gluon recombination corrections for deep inelastic structure functions |
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| Institution: | 1. DESY, Zeuthen, Platanenallee 6, D-15735 Zeuthen, Germany;2. Harish-Chandra Research Institute, Chhatnag Road, Jhusi, Allahabad, 211019, India;3. Department of Physics, East China Normal University, Shanghai 200062, PR China |
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| Abstract: | We calculate twist-4 coefficient functions for the deep inelastic structure function F2(x,Q2) associated to 4-gluon operator matrix elements for general values of the Bjorken variable x and study the numerical effect on the slope ∂F2(x,Q2)/∂logQ2. It is shown that these contributions diminish the strongly rising twist-2 terms towards small values of x. |
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