PreprintCC BY 4.0arXiv
High-quality axion from chain seesaw
Abstract
We propose a chain seesaw mechanism to generate not only the masses of neutral neutrinos but also the masses of charged fermions, by supplementing the standard model SU(3)c× SU(2)L× U(1)Y gauge symmetries with an additional U(1)Y' gauge symmetry. The chains for the down-type and up-type quarks contain different numbers of links, because the corresponding mediator vector-like fermions and new Higgs scalars carry different U(1)Y' charges. The Peccei-Quinn global symmetry is automatically embedded in this $U(1)_{Y'}^{} $ gauge symmetry which is sufficient to guarantee the high quality of axion.
Related
BibTeX
@misc{gu2026highquality,
title = {{High-quality axion from chain seesaw}},
author = {Pei-Hong Gu},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.30136},
eprint = {2609.30136},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.30136},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - High-quality axion from chain seesaw
AU - Pei-Hong Gu
PY - 2026
DA - 2026/09/24
PB - arXiv
DO - 10.48550/arxiv.2609.30136
UR - https://arxiv.org/abs/2609.30136
AB - We propose a chain seesaw mechanism to generate not only the masses of neutral neutrinos but also the masses of charged fermions, by supplementing the standard model SU(3)_c^× SU(2)_L^× U(1)_Y^ gauge symmetries with an additional U(1)_Y'^ gauge symmetry. The chains for the down-type and up-type quarks contain different numbers of links, because the corresponding mediator vector-like fermions and new Higgs scalars carry different U(1)_Y'^ charges. The Peccei-Quinn global symmetry is automatically embedded in this $U(1)_{Y'}^{} $ gauge symmetry which is sufficient to guarantee the high quality of axion.
ER -