Compactified 2HDM under the Non-SUSY AdS instability conjecture
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arXiv
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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866909968717840384 |
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| author | Rbah, M. A. Saoud, S. Sammani, R. Saidi, E. H. Laamara, R. Ahl |
| author_facet | Rbah, M. A. Saoud, S. Sammani, R. Saidi, E. H. Laamara, R. Ahl |
| contents | We investigate how extra-dimensional dynamics influence the Higgs sector phenomenology by compactifying a Two-Higgs-Doublet Model (2HDM) coupled to 4D gravity on a circle $S^{1}$. The resulting effective potential includes tree-level 2HDM interactions, one-loop Coleman-Weinberg corrections from the Kaluza-Klein towers, and a radion contribution inspired by the Goldberger-Wise mechanism. We derive the full 3D effective action and show that, for the observed Higgs mass $m_{h}=125$ GeV, the radion potential admits a stable minimum, near-zero vacuum energy. By imposing the non-supersymmetric AdS instability conjecture as a quantum gravity consistency requirement, we obtain a model independent bound on the heavy Higgs sector, finding that the additional scalar states must satisfy $M_{H}\gtrsim 680$ GeV to avoid an unstable AdS$_{3}$ vacuum. Our results demonstrate how Swampland inspired constraints can yield sharp, phenomenologically testable predictions for extended Higgs sectors. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_16389 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Compactified 2HDM under the Non-SUSY AdS instability conjecture Rbah, M. A. Saoud, S. Sammani, R. Saidi, E. H. Laamara, R. Ahl High Energy Physics - Phenomenology We investigate how extra-dimensional dynamics influence the Higgs sector phenomenology by compactifying a Two-Higgs-Doublet Model (2HDM) coupled to 4D gravity on a circle $S^{1}$. The resulting effective potential includes tree-level 2HDM interactions, one-loop Coleman-Weinberg corrections from the Kaluza-Klein towers, and a radion contribution inspired by the Goldberger-Wise mechanism. We derive the full 3D effective action and show that, for the observed Higgs mass $m_{h}=125$ GeV, the radion potential admits a stable minimum, near-zero vacuum energy. By imposing the non-supersymmetric AdS instability conjecture as a quantum gravity consistency requirement, we obtain a model independent bound on the heavy Higgs sector, finding that the additional scalar states must satisfy $M_{H}\gtrsim 680$ GeV to avoid an unstable AdS$_{3}$ vacuum. Our results demonstrate how Swampland inspired constraints can yield sharp, phenomenologically testable predictions for extended Higgs sectors. |
| title | Compactified 2HDM under the Non-SUSY AdS instability conjecture |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2512.16389 |