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The Super-Planckian Axion Strikes Back

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arxiv 1906.10193 v1 pith:EPB422CJ submitted 2019-06-24 hep-ph hep-th

Nayara Fonseca , Benedict von Harling , Leonardo de Lima , Camila S. Machado This is my paper · ORCID
classification hep-phhep-th
keywords axioncommonlargeallowingapplicationsaxionsbackbrane
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We present a novel framework for obtaining large hierarchies in axion decay constants as well as trans-Planckian field excursions, with no need for tuning or a large number of fields. We consider a model with two or more CFTs with a common cutoff, that are linked by a gauged diagonal symmetry. This construction is dual to the geometry of a warped space with two or more throats glued at a common brane, allowing for calculability. Many applications of our setup are possible,such as ultra-light axions, natural inflation, and relaxion models.

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Cited by 1 Pith paper

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  1. Vacuum Metastability from Axion-Higgs Criticality

    hep-ph 2024-12 conditional novelty 6.0 of 10

    An ALP-Higgs coupling can lower the vacuum instability scale to near the weak scale, predicting an axion-like particle between 1 MeV and 20 GeV that future experiments can fully probe.

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