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On the n -> 0 limit of gamma_gg(a) in QCD

J. F. Bennett·J. A. Gracey
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Abstract

We consider the n -> 0 limit of the DGLAP splitting function gamma_gg(a) at all orders in the strong coupling constant, a, by analysing the leading order large N_f form of the associated d-dimensional critical exponent. We show that for unpolarized scattering the pole at n = 0 which appears in successive orders in perturbation theory is absent in the resummed expression.

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J. F. Bennett, J. A. Gracey. 2000-08-08. On the n -> 0 limit of gamma_gg(a) in QCD. https://doi.org/10.1016/s0370-2693(00)00879-0

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