Scrutinizing h(125) in Two Higgs Doublet Models at the LHC, ILC, and Muon Collider

Abstract

The discovery at the LHC of a scalar particle with properties that are so far consistent with the SM Higgs boson is one of the most important advances in the history of particle physics. The challenge of future collider experiments is to determine whether its couplings will show deviations from the SM Higgs, as this would indicate new physics at the TeV scale, and also to probe the flavor structure of the Yukawa couplings. As a benchmark alternative to the SM Higgs, we consider a generic two Higgs doublet model (2HDM) and analyze the precision to which the LHC14, an ILC250, 500, 1000 GeV and a 125 GeV Muon Collider (MC) can determine the gauge and Yukawa couplings. We allow for correlations among the couplings. We include the impact of a Higgs total width measurement, indirectly at the LHC and ILC and by a direct scan at the MC. We also discuss pattern relations among the couplings that can test for singlet or doublet Higgs extensions of 2HDMs.

32 pages, 13 figures and 9 tables. Machine benchmark assumptions updated and several references added

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Cited by in corpus (47)

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• Global fits of the two-loop renormalized Two-Higgs-Doublet model with soft $Z_2$ breaking
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• The Next-to-Minimal Two Higgs Doublet Model
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• Learning from Higgs Physics at Future Higgs Factories
• Higgcision Updates 2014
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• New physics in resonant production of Higgs boson pairs
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• Natural minimal dark matter
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