The triple Higgs coupling: A new probe of low-scale seesaw models

Abstract

The measure of the triple Higgs coupling is one of the major goals of the high-luminosity run of the CERN Large Hadron Collider (HL-LHC) as well as the future colliders, either leptonic such as the International Linear Collider (ILC) or hadronic such as the 100 TeV Future Circular Collider in hadron-hadron mode (FCC-hh). We have recently proposed this observable as a test of neutrino mass generating mechanisms in a regime where heavy sterile neutrino masses are hard to be probed otherwise. We present in this article a study of the one-loop corrected triple Higgs coupling in the inverse seesaw model, taking into account all relevant constraints on the model. This is the first study of the impact on the triple Higgs coupling of heavy neutrinos in a realistic, renormalizable neutrino mass model. We obtain deviations from the Standard Model as large as to $\sim +30\%$ that are at the current limit of the HL-LHC sensitivity, but would be clearly visible at the ILC or at the FCC-hh.

25 pages, 5 figures. V2: references and clarifications added, a few typos corrected; matches the published version

References in corpus (9)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Updated fit to three neutrino mixing: exploring the accelerator-reactor complementarity
• Unitarity of the Leptonic Mixing Matrix
• Sterile neutrino searches at future $e^{-}{e}^{+}$, $pp$, and $e^{-}p$ colliders
• Imprints of massive inverse seesaw model neutrinos in lepton flavor violating Higgs boson decays
• News from FormCalc and LoopTools
• Phenomenological Consequences of sub-leading Terms in See-Saw Formulas
• Physics at a 100 TeV pp collider: Higgs and EW symmetry breaking studies

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