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arXiv · 2310.16348

Classification of three-family flavoured DFSZ axion models that have no domain wall problem

Peter Cox·Matthew J. Dolan·Maaz Hayat·Andrea Thamm·Raymond R. Volkas
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Abstract

We provide an exhaustive classification of three-family DFSZ axion models that have no cosmological domain wall problem. This result is obtained by making the Peccei-Quinn symmetry flavour dependent in certain specific ways, thus reinforcing a possible connection between the strong CP problem and the flavour puzzle. Known DFSZ flavour variants such as the top-specific model emerge as special cases. Key features of the phenomenology of these models are briefly discussed.

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Peter Cox, Matthew J. Dolan, Maaz Hayat, Andrea Thamm, Raymond R. Volkas. 2023-10-25. Classification of three-family flavoured DFSZ axion models that have no domain wall problem. https://doi.org/10.1007/jhep02(2024)011

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