A light pseudoscalar near the Υ(1S) mass, mixing with two Higgs doublets in the alignment limit, accounts for the anomalous ditau rate while evading existing constraints.
Two-Higgs-doublet-plus-pseudoscalar model: Collider, dark matter, and gravitational wave signals,
4 Pith papers cite this work. Polarity classification is still indexing.
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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.
Boosted di-b-jet tagging plus BDT analysis yields 5-10 sigma significance for a light pseudoscalar in flipped 2HDM with 3 ab^{-1} including 10% systematics.
In the 2HD+a model with near-zero A-a mixing, single-component WIMP dark matter naturally lies below the neutrino floor above 100 GeV while two-component scenarios are largely excluded by current bounds.
citing papers explorer
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Hiding in the Shadow of the Upsilon: Ditaus from a Light Pseudoscalar
A light pseudoscalar near the Υ(1S) mass, mixing with two Higgs doublets in the alignment limit, accounts for the anomalous ditau rate while evading existing constraints.
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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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LHC signatures of a light pseudoscalar in a flipped two-Higgs scenario: the usefulness of boosted $b{\bar b}$ pairs
Boosted di-b-jet tagging plus BDT analysis yields 5-10 sigma significance for a light pseudoscalar in flipped 2HDM with 3 ab^{-1} including 10% systematics.
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Charting Dark Matter down to the neutrino floor/fog in the 2HD+a scenario
In the 2HD+a model with near-zero A-a mixing, single-component WIMP dark matter naturally lies below the neutrino floor above 100 GeV while two-component scenarios are largely excluded by current bounds.