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Model Independent Determination of the Top Yukawa Coupling from LHC and LC

Klaus Desch·Markus Schumacher
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Abstract

We show how a measurement of the process pp-->t tbar H + X at the LHC and a measurement of the Higgs boson branching ratios BR(H-->b bar) and BR(H-->W+W-) at a future linear electron positron collider can be combined to extract a model-independent measurement of the top quark Yukawa coupling. We find that for 120 GeV < m_H < 200 GeV a measurement precision of 15% including systematic uncertainties can be achieved for integrated luminosities of 300 fb-1 at the LHC and 500 fb-1 at the LC at a centre-of-mass energy of 350 GeV.

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Klaus Desch, Markus Schumacher. 2004-07-14. Model Independent Determination of the Top Yukawa Coupling from LHC and LC. https://doi.org/10.1140/epjc%2Fs2006-02534-6

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