Eur. Phys. J. C 26, 445-455 (2003)
DOI: 10.1140/epjc/s2002-01068-3

World-line techniques for resumming gluon radiative corrections at the cross-section level

A.I. Karanikas¹, C.N. Ktorides¹ and N.G. Stefanis<sup>2

1</sup>  University of Athens, Department of Physics, Nuclear and Particle Physics Section, Panepistimiopolis, 15771 Athens, Greece
²  Institut für Theoretische Physik II, Ruhr-Universität Bochum, 44780 Bochum, Germany

(Received: 10 June 2002 / Published online: 31 October 2002 )

Abstract
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 ( pair annihilation) cross-sections. We emphasize that this is the first time that world-line techniques are applied to cross-section calculations.

© Società Italiana di Fisica, Springer-Verlag 2003