Abstract
We compute the tree level cross section for gluon-gluon elastic scattering taking into account a dynamical gluon mass, and show that this mass scale is a natural regulator for this subprocess cross section. Using an eikonal approach in order to examine the relationship between this gluon-gluon scattering and the elastic and channels, we found that the dynamical gluon mass is of the same order of magnitude as the ad hoc infrared mass scale underlying eikonalized QCD-inspired models. We argue that this correspondence is not an accidental result, and that this dynamical scale indeed represents the onset of nonperturbative contributions to the elastic hadron-hadron scattering. We apply the eikonal model with a dynamical infrared mass scale to obtain predictions for , , slope , and differential elastic scattering cross section at Tevatron and CERN-LHC energies.
- Received 7 July 2005
DOI:https://doi.org/10.1103/PhysRevD.72.034019
©2005 American Physical Society