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

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

2000-08-08

arxiv.org/abs/hep-ph/0008067v1

Phys.Lett.B488:269-273,2000

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 latex pages

Scientific paper

10.1016/S0370-2693(00)00879-0

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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