Computation of the Soft Anomalous Dimension Matrix in Coordinate Space
High Energy Physics - Phenomenology
2010-10-22 v1
Abstract
We complete the coordinate space calculation of the three-parton correlation in the two-loop massive soft anomalous dimension matrix. The full answer agrees with the result found previously by a different approach. The coordinate space treatment of renormalized two-loop gluon exchange diagrams exhibits their color symmetries in a transparent fashion. We compare coordinate space calculations of the soft anomalous dimension matrix with massive and massless eikonal lines and examine its nonuniform limit at absolute threshold.
Keywords
Cite
@article{arxiv.1005.4646,
title = {Computation of the Soft Anomalous Dimension Matrix in Coordinate Space},
author = {Alexander Mitov and George Sterman and Ilmo Sung},
journal= {arXiv preprint arXiv:1005.4646},
year = {2010}
}
Comments
12 pages, 6 figures, revtex