An anomalous dimension for small x evolution

Simple item page
dc.creatorAltarelli, Guido
dc.creatorBall, Richard D.
dc.creatorForte, Stefano
dc.date2003-06-17
dc.date2003-07-25
dc.date.accessioned2026-07-07T10:48:47Z
dc.date.available2026-07-07T10:48:47Z
dc.descriptionWe construct an anomalous dimension for small x evolution which goes beyond standard fixed order perturbative evolution by including resummed small x logarithms deduced from the leading order BFKL equation with running coupling. Surprisingly, we find that once running coupling effects are properly taken into account, the leading approximation is very close to standard perturbative evolution in the range of x accessible at HERA, in overall agreement with the data, with no need for phenomenological parameters to summarise subleading effects. We also show that further corrections due to subleading small x logarithms derived from the Fadin-Lipatov kernel can be kept under control, but that they involve substantial resummation ambiguities which limit their practical usefulness.
dc.description25 pages, 8 figures, plain TeX with harvmac; minor errors in the text corrected
dc.identifierhttps://arxiv.org/abs/hep-ph/0306156
dc.identifierhttp://arxiv.org/abs/hep-ph/0306156
dc.identifierNucl.Phys.B674:459-483,2003
dc.identifierdoi:10.1016/j.nuclphysb.2003.09.040
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/184003
dc.subjectHigh Energy Physics - Phenomenology
dc.titleAn anomalous dimension for small x evolution
dc.typetext

Files

Collections

arXiv