Is our vacuum global in a 331 model with three triplets?
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arXiv
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| Auteurs principaux: | , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866918369318404096 |
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| author | Kannike, Kristjan Koivunen, Niko Kubarski, Aleksei |
| author_facet | Kannike, Kristjan Koivunen, Niko Kubarski, Aleksei |
| contents | We consider a 331 model, based on $β=-1/\sqrt{3}$, with three $SU(3)$ triplets with a softly broken $\mathbb{Z}_2$ symmetry. The resulting scalar potential is commonly used in phenomenology. We systematically determine all the potential minima and obtain the conditions under which the electroweak vacuum is global with the help of orbit space methods. For the case the electroweak vacuum is not global, we calculate bounds on the scalar couplings from metastability. We find a parametrisation of the potential couplings in terms of physical quantities and use it to show the available parameter space. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_18250 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Is our vacuum global in a 331 model with three triplets? Kannike, Kristjan Koivunen, Niko Kubarski, Aleksei High Energy Physics - Phenomenology High Energy Physics - Theory We consider a 331 model, based on $β=-1/\sqrt{3}$, with three $SU(3)$ triplets with a softly broken $\mathbb{Z}_2$ symmetry. The resulting scalar potential is commonly used in phenomenology. We systematically determine all the potential minima and obtain the conditions under which the electroweak vacuum is global with the help of orbit space methods. For the case the electroweak vacuum is not global, we calculate bounds on the scalar couplings from metastability. We find a parametrisation of the potential couplings in terms of physical quantities and use it to show the available parameter space. |
| title | Is our vacuum global in a 331 model with three triplets? |
| topic | High Energy Physics - Phenomenology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2509.18250 |