Search for the standard model Higgs boson in the H→WW→lνq'q decay channel.
ABSTRACT We present a search for the standard model Higgs boson (H) in pp collisions at sqrt(s)=1.96 TeV in events containing a charged lepton (ℓ), missing transverse energy, and at least two jets, using 5.4 fb(-1) of integrated luminosity recorded with the D0 detector at the Fermilab Tevatron Collider. This analysis is sensitive primarily to Higgs bosons produced through the fusion of two gluons or two electroweak bosons, with subsequent decay H→WW→ℓνq'q, where ℓ is an electron or muon. The search is also sensitive to contributions from other production channels, such as WH→ℓνbb. In the absence of a signal, we set limits at the 95% C.L. on the cross section for H production σ(pp→H+X) in these final states. For a mass of M(H)=160 GeV, the limit is a factor of 3.9 larger than the cross section in the standard model and consistent with an a priori expected sensitivity of 5.0.
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ABSTRACT: We show that it may well be possible to overcome the jjW background to Higgs-boson detection in mixed hadronic-leptonic final decay channels, while maintaining substantial event rates, even for Higgs-boson masses as high as 1 TeV.Physical review D: Particles and fields 09/1986; 34(3):826-832.