ar X iv : h ep - p h / 04 07 36 8 v 1 3 0 Ju l 2 00 4 Fall and rise of the gluon splitting function ∗
نویسنده
چکیده
This talk reviews some recent results on the NLL resummed smallx 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 αs ln 1/x ∼ 1 but rather for αs ln 2 1/x ∼ 1. It is well-known that the resummation of leading-logarithms of x (LLx) [1] and next-to-leading logarithms (NLLx) [2, 3] in the gluon splitting function,
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تاریخ انتشار 2004