Soft-gluon effects in WW production at hadron colliders

Details Soft-gluon effects in WW production at hadron colliders Soft-gluon effects in WW production at hadron colliders

2005-10-26

arxiv.org/abs/hep-ph/0510337v2

JHEP0601:095,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, 12 postscript figures. Error corrected in NLO plot for WW transverse-mass distribution. Results unchanged

Scientific paper

10.1088/1126-6708/2006/01/095

We consider QCD radiative corrections to WW pair production in hadron collisions. We perform a calculation that consistently combines next-to-leading order predictions with soft-gluon resummation valid at small transverse momenta ptWW of the WW pair. We present results for the ptWW distribution at the LHC up to (almost) next-to-next-to-leading logarithmic accuracy, and study the effect of resummation on the charged-lepton distributions. Soft-gluon effects are typically mild, but they can be strongly enhanced when hard cuts are applied. The relevant distributions are generally well described by the MC@NLO event generator.

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