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

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 M_H = 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 g_Hbb in the context of the Standard Model or some extensions, such as the MSSM.

added background, updated/added references, additional comments

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• Measuring the Higgs Boson Self-coupling at High Energy e^+e^- Colliders
• A new analysis of PP --> bblvjj at the LHC: Higgs and W boson associated production with two tag jets