Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2005-12-19
Nucl.Phys.B742:1-40,2006
Physics
High Energy Physics
High Energy Physics - Phenomenology
44 pages, 12 figures, plain TeX with harvmac. Final version, to be published in Nucl. Phys. B. Discussion of integrated vs. un
Scientific paper
10.1016/j.nuclphysb.2006.01.046
We present a small x resummation for the GLAP anomalous dimension and its corresponding dual BFKL kernel, which includes all the available perturbative information and nonperturbative constraints. Specifically, it includes all the information coming from next-to-leading order GLAP anomalous dimensions and BFKL kernels, from the constraints of momentum conservation, from renormalization-group improvement of the running coupling and from gluon interchange symmetry. The ensuing evolution kernel has a uniformly stable perturbative expansion. It is very close to the unresummed NLO GLAP kernel in most of the HERA kinematic region, the small x BFKL behaviour being softened by momentum conservation and the running of the coupling. Next-to-leading corrections are small thanks to the constraint of gluon interchange symmetry. This result subsumes all previous resummations in that it combines optimally all the information contained in them.
Altarelli Guido
Ball Richard D.
Forte Stefano
No associations
LandOfFree
Perturbatively Stable Resummed Small x Evolution Kernels does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Perturbatively Stable Resummed Small x Evolution Kernels, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Perturbatively Stable Resummed Small x Evolution Kernels will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-281353