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arXiv · 1905.07285

Axiflavon-Higgs Unification

Tommi Alanne·Simone Blasi·Florian Goertz
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Abstract

In this talk, a unified model of scalar particles that addresses the flavour hierarchies, solves the strong CP problem, delivers a dark matter candidate, and radiatively triggers electroweak symmetry breaking is discussed. The recently proposed axiflavon is embedded together with an (elementary) Goldstone Higgs-sector in a single multiplet (and thereby also a model of flavour and strong CP conservation for the latter is provided). Bounds on the axion decay constant follow from requiring a SM-like Higgs potential at low energies and are confronted with constraints from flavour physics and astrophysics. In the minimal implementation, the axion decay constant is restricted to $f_a \approx (10^{11}-10^{12})$ GeV, while adding right-handed neutrinos allows for a heavy-axion model at lower energies, down to $f_a \sim 10$ TeV.

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Tommi Alanne, Simone Blasi, Florian Goertz. 2019-05-17. Axiflavon-Higgs Unification. https://arxiv.org/abs/1905.07285

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