QCD radiation effects on the H->WW->l nu l nu signal at the LHC

Details QCD radiation effects on the H->WW->l nu l nu signal at the LHC QCD radiation effects on the H->WW->l nu l nu signal at the LHC

2008-01-17

arxiv.org/abs/0801.2682v2

JHEP0803:017,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, 14 figures, added references, results update

Scientific paper

10.1088/1126-6708/2008/03/017

The discovery of a Standard Model Higgs boson is possible when experimental cuts are applied which increase the ratio of signal and background cross-sections. In this paper we study the pp->H->WW signal cross-section at the LHC which requires a selection of Higgs bosons with small transverse momentum. We compare predictions for the efficiency of the experimental cuts from a NNLO QCD calculation, a calculation of the resummation of logarithms in the transverse momentum of the Higgs boson at NNLL, and the event generator MC@NLO. We also investigate the impact of various jet-algorithms, the underlying event and hadronization on the signal cross-section.

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