The non-singlet QCD evolution kernels improved by renormalon chain contributions
High Energy Physics - Phenomenology
2007-05-23 v1
Abstract
Closed expressions are presented for the contributions to QCD non-singlet forward evolution kernels for the DGLAP equation and to for non-forward (ER-BL) evolution equation for a certain class of diagrams which include renormalon chains. Calculations are performed in covariant -gauge, in the \MSbar scheme. The assumption of "naive nonabelianization" approximation for kernel calculations is discussed, and a special choice of the gauge parameter is analyzed in this context. Partial solutions to the ER-BL evolution equation are obtained.
Keywords
Cite
@article{arxiv.hep-ph/9809299,
title = {The non-singlet QCD evolution kernels improved by renormalon chain contributions},
author = {S. V. Mikhailov},
journal= {arXiv preprint arXiv:hep-ph/9809299},
year = {2007}
}
Comments
talk presented at Quarks'98, 10 pages, LaTeX 2-eps, 1 Table, 1 figure is included into the tex-file, 1 figure is added as ps-file