Origin of the Large Perturbative Corrections to Higgs Production at Hadron Colliders

2008/08/21 by Valentin Ahrens, Thomas Becher, Matthias Neubert +1 · 1 citation
Physics and Astronomy · #hep-ph

paper · pdf · doi:10.1103/physrevd.79.033013

published as Phys.Rev.D79:033013,2009 · 4 pages, 1 figure

arxiv created 2008/08/21 · arxiv updated 2009/12/01

Abstract

The very large K-factor for Higgs-boson production at hadron colliders is shown to result from enhanced perturbative corrections of the form (C_Aπα_s)ⁿ, which arise in the analytic continuation of the gluon form factor to time-like momentum transfer. These terms are resummed to all orders in perturbation theory using the renormalization group. After the resummation, the K-factor for the production of a light Higgs boson at the LHC is reduced to a value close to 1.3.

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