Possible new resonance from $W_L{W}_L$-$hh$ interchannel coupling

Abstract

We propose and theoretically study a possible new resonance caused by strong coupling between the Higgs-Higgs and the W_L W_L (Z_L Z_L) scattering channels, without regard to the intensity of the elastic interaction in either channel at low energy (that could be weak as in the Standard Model). We expose this channel-coupling resonance from unitarity and dispersion relations encoded in the Inverse Amplitude Method, applied to the Electroweak Chiral Lagrangian with a scalar Higgs.

arXiv comment4 pages, 7 figures

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• Inverse Amplitude Method for Perturbative Electroweak Symmetry Breaking Sector: The Singlet Higgs Portal as a Study Case
• Systematizing and addressing theory uncertainties of unitarization with the Inverse Amplitude Method
• Axion-Higgs interplay in the two Higgs-doublet model
• Colorful Imprints of Heavy States in the Electroweak Effective Theory
• Coupling WW, ZZ unitarized amplitudes to $\gamma \gamma$ in the TeV region
• Production cross section estimates for strongly-interacting Electroweak Symmetry Breaking Sector resonances at particle colliders
• Interpreting a 2 TeV resonance in WW scattering
• Top-antitop production from $W_L^{+}{W}_L^{-}$ and $Z_L{Z}_L$ scattering under a strongly-interacting symmetry-breaking sector
• Resonant production of Wh and Zh at the LHC
• Collider production of Electroweak resonances from photon-photon states
• Introducing tools to test Higgs interactions via $WW$ scattering II: the coupled channel formalism and scalar resonances
• Unitarity and Unitarization
• Coupling of $t\bar{t}$ and $\gamma \gamma$ with a strongly interacting Electroweak Symmetry Breaking Sector