We apply the GLV Reaction Operator formalism to compute the effects of
multiple elastic scatterings of jets propagating through dense matter. We
derive the elastic Reaction Operator and demonstrate that the recursion
relations have a closed form solution that reduces to the familiar Glauber
form. We also investigate the accuracy of the Gaussian dipole approximation for
jet transverse momentum broadening.Comment: 9 pages, 4 .ps figures. Uses REVTeX and bbox.st