Vacuum Structure of an Extended Standard Model with $U(1)_D$ Symmetry
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arXiv
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| Main Authors: | , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866912860690448384 |
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| author | Adam, Apriadi Salim Andriani, Yunita Kristanti Dirgantara, Bayu |
| author_facet | Adam, Apriadi Salim Andriani, Yunita Kristanti Dirgantara, Bayu |
| contents | In this research, we investigate the vacuum structure of an extended standard model with a $U(1)_D$ global symmetry. The scalar sector consists of two $SU(2)$ doublets as well as one complex singlet and one real singlet, resulting in a more complicated vacuum structure compared to that of the Standard Model. We analyze various theoretical constraints, including the conditions for being bounded from below, the existence of a global minimum, and perturbativity up to the Planck scale. Additionally, we consider experimental constraints from the Higgs invisible decay. Through a detailed statistical analysis using numerical methods, we show that the extended scalar potential can accommodate a stable vacuum while satisfying both theoretical and experimental constraints for a small region of the parameter space. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2509_05534 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Vacuum Structure of an Extended Standard Model with $U(1)_D$ Symmetry Adam, Apriadi Salim Andriani, Yunita Kristanti Dirgantara, Bayu High Energy Physics - Phenomenology High Energy Physics - Theory In this research, we investigate the vacuum structure of an extended standard model with a $U(1)_D$ global symmetry. The scalar sector consists of two $SU(2)$ doublets as well as one complex singlet and one real singlet, resulting in a more complicated vacuum structure compared to that of the Standard Model. We analyze various theoretical constraints, including the conditions for being bounded from below, the existence of a global minimum, and perturbativity up to the Planck scale. Additionally, we consider experimental constraints from the Higgs invisible decay. Through a detailed statistical analysis using numerical methods, we show that the extended scalar potential can accommodate a stable vacuum while satisfying both theoretical and experimental constraints for a small region of the parameter space. |
| title | Vacuum Structure of an Extended Standard Model with $U(1)_D$ Symmetry |
| topic | High Energy Physics - Phenomenology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2509.05534 |