Peccei-Quinn symmetry with residual symmetries
High Energy Physics - Phenomenology
2021-06-25 v1
Abstract
So far the null results from axion searches have enforced a huge hierarchy between the Peccei-Quinn and electroweak symmetry breaking scales. Then the inevitable Higgs portal poses a large fine tuning on the standard model Higgs scalar. Now we find if the Peccei-Quinn global symmetry has a set of residually discrete symmetries, these global and discrete symmetries can achieve a chain breaking at low scales such as the accessible TeV scale. This novel mechanism can accommodate some new phenomena including a sizable coupling of the standard model Higgs boson to the axion.
Cite
@article{arxiv.2106.13010,
title = {Peccei-Quinn symmetry with residual symmetries},
author = {Pei-Hong Gu},
journal= {arXiv preprint arXiv:2106.13010},
year = {2021}
}
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5 pages