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Search: authors:"Otto Eberhardt"

3 papers found.
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Update of global Two-Higgs-Doublet model fits

Abstract We perform global fits of Two-Higgs-Doublet models with a softly broken ℤ2 symmetry to recent results from the LHC detectors CMS and ATLAS, that is signal strengths and direct search limits obtained at \( \sqrt{s}=8 \) TeV and \( \sqrt{s}=13 \) TeV. We combine all available ATLAS and CMS constraints with the other relevant theoretical and experimental bounds and present...

Global fits of the two-loop renormalized Two-Higgs-Doublet model with soft Z 2 breaking

We determine the next-to-leading order renormalization group equations for the Two-Higgs-Doublet model with a softly broken Z 2 symmetry and CP conservation in the scalar potential. We use them to identify the parameter regions which are stable up to the Planck scale and find that in this case the quartic couplings of the Higgs potential cannot be larger than 1 in magnitude and...

Next-to-leading order unitarity fits in Two-Higgs-Doublet models with soft ℤ 2 breaking

We fit the next-to-leading order unitarity conditions to the Two-Higgs-Doublet model with a softly broken ℤ 2 symmetry. In doing so, we alleviate the existing uncertainty on how to treat higher order corrections to quartic couplings of its Higgs potential. A simplified approach to implementing the next-to-leading order unitarity conditions is presented. These new bounds are then...