Model-independent determination of the top Yukawa coupling from LHC and ILC |
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| Authors: | K. Desch M. Schumacher |
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| Affiliation: | 1. Physikalisches Institut, Universit?t Freiburg, Hermann-Herder-Str. 3, 79104, Freiburg, Germany
2. Physikalisches Institut, Universit?t Bonn, Nussallee 12, 53112, Bonn, Germany
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| Abstract: | We show how a measurement of the process pp→tt̄H0+X at the Large Hadron Collider (LHC) and a measurement of the Higgs boson branching ratios BR(H0→bb̄) and BR(H0→W+W-) at a future linear electron positron collider (ILC) can be combined to extract a value of the top quark Yukawa coupling in a model-independent way. We find that for masses with 120 GeV/c2H<200 GeV/c2 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 ILC at a centre-of-mass energy of 350 GeV. |
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