Fall and rise of the gluon splitting function

Gavin P. Salam (1)

1 LPTHE - Laboratoire de Physique Théorique et Hautes Energies

This talk reviews some recent results on the NLL resummed small-x gluon splitting function, as determined including renormalisation-group improvements. It also discusses the observation that the LO, NLO, NNLO, etc. hierarchy for the gluon splitting function breaks down not when (alpha_s log 1/x) is of order one but rather for (alpha_s log^2 1/x) of order one.

Domaines: Physique des Hautes Energies - Phénoménologie [hep-ph]

Gavin P. Salam. Fall and rise of the gluon splitting function. Strbske Pleso 2004, Deep inelastic scattering* 407-412, 2004, Slovakia. ⟨hal-00009107⟩