Off-mass-shell Sudakov-like suppression factor for the fermionic four-point function in QCD
High Energy Physics - Phenomenology
2009-10-31 v2
Abstract
We consider a four-point process, associated with a wide-angle elastic scattering of two off-mass-shell spin-1/2 matter particles, in a non-abelian gauge theory. On the basis of a worldline approach, which reverts the functional to a path-integral description of the system, we factorize an eikonal (``soft'') subsector of the full theory and calculate the Sudakov-like suppression factor for the four-point function as a whole, once we have extracted the associated anomalous dimensions and taken into account the renormalization-group controlled evolution.
Keywords
Cite
@article{arxiv.hep-ph/9812335,
title = {Off-mass-shell Sudakov-like suppression factor for the fermionic four-point function in QCD},
author = {A. I. Karanikas and C. N. Ktorides and N. G. Stefanis and S. M. H. Wong},
journal= {arXiv preprint arXiv:hep-ph/9812335},
year = {2009}
}
Comments
13 pages in RevTeX; 2 figures as PS files; modified text; added references. To appear in Phys. Lett. B