World-line techniques for resumming gluon radiative corrections at the   cross-section level
  We employ the Polyakov world-line path-integral version of QCD to identify and resum at leading perturbative order enhanced radiative gluon contributions to the Drell-Yan type ($q\bar{q}$ pair annihilation) cross-sections. We emphasize that this is the first time that world-line techniques are applied to cross-section calculations. 
A. I. Karanikas (U. of Athens), C. N. Ktorides (U. of Athens), N. G.   Stefanis (U. of Bochum)