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arXiv · 2410.23957

Progress on Holographic Vacuum Misalignment

Ali Fatemiabhari·Daniel Elander·Maurizio Piai
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Abstract

We summarise highlights from an ongoing research programme that aims, in the long run, at the ambitious goal of building a realistic, complete holographic composite-Higgs model. This contribution focuses on vacuum misalignment, by showing how to unify its description, as a phenomenon arising from weak coupling considerations, in the holographic description of a strongly coupled field theory in terms of a dual gravity theory. This is achieved by a non-trivial treatment of boundary-localised terms in the gravity action. The gravity backgrounds considered are completely regular and smooth. We provide numerical examples showing that the mass spectrum of particles in the four-dimensional theory is free of pathologies, and that a small hierarchy arises naturally, between the light states that, in this simplified set up, are analogous to the standard-model particles, and all the other, new composite states emerging in the strongly coupled theory.

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Ali Fatemiabhari, Daniel Elander, Maurizio Piai. 2024-10-31. Progress on Holographic Vacuum Misalignment. https://arxiv.org/abs/2410.23957

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