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arXiv · 1911.05085

Dilaton portal in strongly interacting twin Higgs models

Aqeel Ahmed·Barry M. Dillon·Saereh Najjari
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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 most of the natural parameter space can be probed.

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Aqeel Ahmed, Barry M. Dillon, Saereh Najjari. 2019-11-12. Dilaton portal in strongly interacting twin Higgs models. https://doi.org/10.1007/jhep02(2020)124

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