Universality of transverse momentum resummation for electroweak boson production

Details Universality of transverse momentum resummation for electroweak boson production Universality of transverse momentum resummation for electroweak boson production

2005-07-14

arxiv.org/abs/hep-ph/0507179v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 1 figure; contribution to the proceedings of the XIII International Workshop on Deep Inelastic Scattering (DIS 2005,

Scientific paper

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.

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