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- W2912785812 abstract "In the wake of new scalar searches at LHC in various channels, it is interesting to investigate the sacrosanctity of the constraints on the masses and couplings of the heavier scalars in a two-Higgs-doublet model (2HDM). We consider the effects of new physics beyond a 2HDM encoded in terms of bosonic dim-6 operators. Although these constraints are mostly immune to such new physics, we demonstrate for a specific class of bosonic operators, the constraints on the masses of the exotic scalars from cascade decays can get substantially relaxed. We present such effects for both degenerate and hierarchical mass spectra of the heavier scalars in 2HDM. Some decay channels of the new scalars vanish at the alignment limit in the tree-level 2HDM. But the inclusion of dim-6 terms can lead to significant cross-sections for such processes. It is also pointed out that observation of such processes can no longer rule out the alignment limit if such dim-6 operators are present." @default.
- W2912785812 created "2019-02-21" @default.
- W2912785812 creator A5026228862 @default.
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- W2912785812 date "2019-09-16" @default.
- W2912785812 modified "2023-10-08" @default.
- W2912785812 title "Relaxed constraints on the heavy scalar masses in 2HDM" @default.
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- W2912785812 doi "https://doi.org/10.1103/physrevd.100.055016" @default.
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