Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2007-03-19
JHEP 0704:052,2007
Physics
High Energy Physics
High Energy Physics - Phenomenology
19 pages, 21 figures
Scientific paper
10.1088/1126-6708/2007/04/052
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 $H\to W^+W^-$ signal at $m_H=160$ 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 $S/B\approx 1/4$, 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.
Klamke Gunnar
Zeppenfeld Dieter
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