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Power corrections in deep inelastic structure functions at large Bjorken x
Nuclear Physics B
We study power corrections to the spin-averaged structure functions F_2 and F_L in the semi-inclusive region. The dramatic breakdown of the operator product expansion at large Bjorken x due to the formation of a narrow jet with invariant mass W (W^2=Q^2(1-x)/x) calls for an alternative approach. Our main conjecture is that the dominant contribution at each twist is the one which mixes under renormalization with the leading twist (ultraviolet dominance). At twist two the dominant perturbativedoi:10.1016/s0550-3213(02)00406-6 fatcat:3bj3r4s2drd2vi6gcad7lponhm