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arXiv · hep-ph/0508215

q_T Uncertainties for W and Z Production

Stefan Berge·Pavel M. Nadolsky·Fredrick I. Olness·C. -P. Yuan
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Abstract

Analysis of semi-inclusive DIS hadroproduction suggests broadening of transverse momentum distributions at small x below 1E-3 ~ 1E-2 which can be modeled in the Collins-Soper-Sterman formalism by a modification of impact parameter dependent parton densities. We investigate these consequences for the production of electroweak bosons at the Tevatron and the LHC. If substantial small-x broadening is observed in forward Z boson production in the Tevatron Run-2, it will strongly affect the predicted q_T distributions for W and Z boson production at the LHC.

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Stefan Berge, Pavel M. Nadolsky, Fredrick I. Olness, C. -P. Yuan. 2005-08-22. q_T Uncertainties for W and Z Production. https://doi.org/10.1063/1.2122139

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