New constraints on extended Higgs sectors from the trilinear Higgs coupling

Abstract

The trilinear Higgs coupling ${\lambda }_{hhh}$ is crucial for determining the structure of the Higgs potential and for probing possible effects of physics beyond the Standard Model (SM). Focusing on the Two-Higgs-Doublet Model as a concrete example, we identify parameter regions in which ${\lambda }_{hhh}$ is significantly enhanced with respect to the SM. Taking into account all relevant corrections up to the two-loop level, we show that already current experimental bounds on ${\lambda }_{hhh}$ rule out significant parts of the parameter space that would otherwise be unconstrained. We illustrate the interpretation of the results on ${\lambda }_{hhh}$ for a benchmark scenario. Similar results are expected for wide classes of models with extended Higgs sectors.

7 pages, 2 figures; v2: matches version published in Phys. Rev. Lett

References in corpus (19)

• Automatic Calculation of supersymmetric Renormalization Group Equations and Self Energies
• SARAH 3.2: Dirac Gauginos, UFO output, and more
• HiggsSignals-2: Probing new physics with precision Higgs measurements in the LHC 13 TeV era
• Basis-independent methods for the two-Higgs-doublet model III: The CP-conserving limit, custodial symmetry, and the oblique parameters S, T, U
• Fingerprinting the extended Higgs sector using one-loop corrected Higgs boson couplings and future precision measurements
• Higgs pair production via gluon fusion in the Two-Higgs-Doublet Model
• Higgs boson pair production in new physics models at hadron, lepton, and photon colliders
• Gauge invariant one-loop corrections to Higgs boson couplings in non-minimal Higgs models
• Next-to-leading order unitarity fits in Two-Higgs-Doublet models with soft ${\mathbb{Z}}_2$ breaking
• Benchmarking Di-Higgs Production in Various Extended Higgs Sector Models
• Trilinear Higgs couplings in the two Higgs doublet model with CP violation
• Higgs pair productions in the CP-violating two-Higgs-doublet model
• Higgs boson pair production at a photon-photon collision in the two Higgs doublet model
• The forgotten channels: charged Higgs boson decays to a $W^{\pm }$ and a non-SM-like Higgs boson
• Exploring sizable triple Higgs couplings in the 2HDM
• Two-loop analysis of classically scale-invariant models with extended Higgs sectors
• Two-loop corrections to the $\rho$ parameter in Two-Higgs-Doublet Models
• Testing Exotic Scalars with HiggsBounds
• Sensitivity to Triple Higgs Couplings via Di-Higgs Production in the 2HDM at e+e- Colliders

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