Higgs plus two jet production via gluon fusion as a signal at the CERN LHC

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Higgs boson production in association with two tagging jets will be mediated by electroweak vector boson fusion and by gluon fusion processes at the CERN LHC. The characteristic distributions for the gluon fusion process are analyzed for the H→ W+W- signal at mₕ=160 GeV, with subsequent leptonic decay of the W-pair. The dominant backgrounds from top-quark pair production, WWjj production and vector boson fusion processes can be suppressed to a level of S/B≈ 1/4, yielding a highly significant gluon fusion signal with 30 fb⁻¹. Analysis of the azimuthal angle correlations of the two jets provides for a direct measurement of the CP-nature of the Htt Yukawa coupling which is responsible for the effective Hgg vertex.