The Aligned 2HDM supports strong first-order electroweak phase transitions that yield LISA-detectable gravitational waves together with LHC-accessible signals from additional neutral and charged Higgs states.
Ilisie,New Barr-Zee contributions to(g−2) µ in two-Higgs-doublet models,JHEP04(2015) 077 [1502.04199]
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abstract
We study the contribution of new sets of two-loop Barr-Zee type diagrams to the anomalous magnetic moment of the muon within the two-Higgs-doublet model framework. We show that some of these contributions can be quite sizeable for a large region of the parameter space and can significantly reduce, and in some cases even explain, the discrepancy between the theoretical prediction and the experimentally measured value of this observable. Analytical expressions are given for all the calculations performed in this work.
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No evidence found for additional Higgs boson pairs in Type-X 2HDM; new limits exclude the model for explaining the muon anomalous magnetic moment anomaly.
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Electro-Weak Phase Transitions and Collider Signals in the Aligned 2-Higgs Doublet Model
The Aligned 2HDM supports strong first-order electroweak phase transitions that yield LISA-detectable gravitational waves together with LHC-accessible signals from additional neutral and charged Higgs states.
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Search for the nonresonant production of a pair of additional Higgs bosons in the Type-X two-Higgs-doublet model in proton-proton collisions at $\sqrt{s}$ = 13 TeV
No evidence found for additional Higgs boson pairs in Type-X 2HDM; new limits exclude the model for explaining the muon anomalous magnetic moment anomaly.