Abstract
We consider a strongly interacting twin Higgs (SITH) model where an ultraviolet completion of twin Higgs mechanism is realized by a strongly coupled approximately scale invariant theory. Besides the Standard Model (SM) and twin sectors, the low energy effective theory contains a relatively light scalar called a dilaton — the pseudo Goldstone boson of spontaneously broken scale invariance. The dilaton provides a unique portal between the SM and twin sectors whose phenomenology could provide an important probe of the twin Higgs mechanism. As a concrete example, we consider a holographic twin Higgs model where the role of the dilaton is played by the radion. The phenomenology of this model is fully determined by a few parameters and our analysis concludes that at the HL-LHC (14 TeV) and HE-LHC (27 TeV) with 3000 fb−1 most of the natural parameter space can be probed.
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Ahmed, A., Dillon, B.M. & Najjari, S. Dilaton portal in strongly interacting twin Higgs models. J. High Energ. Phys. 2020, 124 (2020). https://doi.org/10.1007/JHEP02(2020)124
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DOI: https://doi.org/10.1007/JHEP02(2020)124