Universality of transverse momentum resummation for electroweak boson production
arXiv:hep-ph/0507179 · doi:10.1063/1.2122102
Abstract
We perform a global analysis of transverse momentum distributions in Drell-Yan pair and Z boson production in order to investigate universality of nonperturbative contributions to the Collins-Soper-Sterman resummed form factor. Our fit made in an improved nonperturbative model suggests that the nonperturbative contributions follow universal nearly-linear dependence on the logarithm of the heavy boson invariant mass Q, which closely agrees with an estimate from the infrared renormalon analysis.
5 pages, 1 figure; contribution to the proceedings of the XIII International Workshop on Deep Inelastic Scattering (DIS 2005, April 27 - May 1, 2005, Madison, WI, U.S.A.)