Transverse momentum resummation at small x for the Tevatron and LHC

Details Transverse momentum resummation at small x for the Tevatron and LHC Transverse momentum resummation at small x for the Tevatron and LHC

2004-10-27

arxiv.org/abs/hep-ph/0410375v3

Phys.Rev.D72:033015,2005

Physics

High Energy Physics

High Energy Physics - Phenomenology

31 pages, 10 figures; Phys. Rev. D version; amended Introduction, Sections 2.C and 3.B.1; + 1 figure

Scientific paper

10.1103/PhysRevD.72.033015

Analysis of semi-inclusive DIS hadroproduction suggests broadening of transverse momentum distributions at $x$ below a few $10^{-3}$, which can be modeled in the Collins-Soper-Sterman formalism by a modification of impact-parameter-dependent parton densities. We discuss the consequences of such a modification for the production of electroweak bosons at hadron-hadron colliders. If substantial small-$x$ broadening is observed in forward Z boson production in the Tevatron Run-2, it will strongly affect predicted transverse momentum distributions for W, Z, and Higgs boson production at the Large Hadron Collider.

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