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Axiflavon-Higgs Unification

MPS-Authors

Goertz,  Florian
Florian Goertz - Max Planck Research Group, Junior Research Groups, MPI for Nuclear Physics, Max Planck Society;

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1905.07285.pdf
(Preprint), 2MB

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Citation

Alanne, T., Blasi, S., & Goertz, F. (2019). Axiflavon-Higgs Unification.


Cite as: https://hdl.handle.net/21.11116/0000-0009-0208-C
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.