The 2-loop generalized scaling function from the BES/FRS equation
نویسنده
چکیده
We formulate the BES/FRS equation as a functional equation in the rapidity space and perform its strong coupling expansion in the limit when ℓ = j/4g is kept finite. We obtain a result which is consistent with the previous calculations at tree level and one loop and which differs from the two-loop calculation in 0805.4615 by a term singular at ℓ = 0.
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