Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 11, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP11(2016)026
Keywords
Beyond Standard Model; Higgs Physics
Categories
Funding
- European Research Council under the European Union / ERC [279972]
- MIUR-FIRB [RBFR12H1MW]
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We fit the next-to-leading order unitarity conditions to the Two-Higgs-Doublet model with a softly broken acurrency sign (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 combined with all other relevant constraints, including the complete set of LHC Run I data. The upper 95% bounds we find are 4.2 on the absolute values of the quartic couplings, and 235 GeV (100 GeV) for the mass degeneracies between the heavy Higgs particles in the type I (type II) scenario. In type II, we exclude an unbroken acurrency sign (2) symmetry with a probability of 95%. All fits are performed using the open-source code HEPfit.
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