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A new method for extracting the bottom quark Yukawa coupling at the CERN Large Hadron Collider

D. Rainwater

hep-pharXiv:hep-ph/0004119

Abstract

We propose a new method for measuring the H -> bb rate at the CERN LHC in a manner which would allow extraction of the b quark Yukawa coupling. Higgs boson production in purely electroweak WHjj events is calculated. The Standard Model signal rate including decays W -> l nu and H -> bb is 11 fb for MH = 120 GeV. It is possible to suppress the principal backgrounds, Wbbjj and ttjj, to approximately the level of the signal. As the top quark Yukawa coupling does not appear in this process, it promises a reliable extraction of gHbb in the context of the Standard Model or some extensions, such as the MSSM.

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