Doubly charged Higgs production within the Higgs triplet model at future electron-positron colliders
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| Main Authors: | , , , , , , , |
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| Format: | Preprint |
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2026
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| _version_ | 1866918432180535296 |
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| author | Li, Shu-Xiang Zhang, Ren-You Liu, Ming-Hui Wang, Xiao-Feng Liu, Zhong-Yuan Jiang, Yi Han, Liang Wang, Qing-hai |
| author_facet | Li, Shu-Xiang Zhang, Ren-You Liu, Ming-Hui Wang, Xiao-Feng Liu, Zhong-Yuan Jiang, Yi Han, Liang Wang, Qing-hai |
| contents | We investigate in detail the discovery potential of the doubly charged Higgs boson at the Compact Linear Collider in $e^-e^-$, $e^-γ$, $γγ$, and $e^+e^-$ collision modes, within the Higgs triplet model at two extreme benchmark points as representatives of the Yukawa-like and gauge-like regions. In the Yukawa-like region, the most promising production mechanism is the single production via $e^-e^-$ and $e^-γ$ collisions. Given the subsequent decay of the doubly charged Higgs into a same-sign lepton pair, CLIC can achieve statistical significance well beyond the discovery threshold, within the parameter space permitted by experimental constraints. In the gauge-like region, with the $\ell^{\pm}\ell^{\pm} + \geq 3j$ final state, CLIC exhibits robust discovery potential for the doubly charged Higgs boson, up to a mass of approximately $1.2~\mathrm{TeV}$. We also investigate the search for doubly charged Higgs at the HL-LHC. Our results demonstrate that CLIC possesses greater advantages and offers superior discovery potential for the doubly charged Higgs boson, compared to the HL-LHC. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2604_05924 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Doubly charged Higgs production within the Higgs triplet model at future electron-positron colliders Li, Shu-Xiang Zhang, Ren-You Liu, Ming-Hui Wang, Xiao-Feng Liu, Zhong-Yuan Jiang, Yi Han, Liang Wang, Qing-hai High Energy Physics - Phenomenology We investigate in detail the discovery potential of the doubly charged Higgs boson at the Compact Linear Collider in $e^-e^-$, $e^-γ$, $γγ$, and $e^+e^-$ collision modes, within the Higgs triplet model at two extreme benchmark points as representatives of the Yukawa-like and gauge-like regions. In the Yukawa-like region, the most promising production mechanism is the single production via $e^-e^-$ and $e^-γ$ collisions. Given the subsequent decay of the doubly charged Higgs into a same-sign lepton pair, CLIC can achieve statistical significance well beyond the discovery threshold, within the parameter space permitted by experimental constraints. In the gauge-like region, with the $\ell^{\pm}\ell^{\pm} + \geq 3j$ final state, CLIC exhibits robust discovery potential for the doubly charged Higgs boson, up to a mass of approximately $1.2~\mathrm{TeV}$. We also investigate the search for doubly charged Higgs at the HL-LHC. Our results demonstrate that CLIC possesses greater advantages and offers superior discovery potential for the doubly charged Higgs boson, compared to the HL-LHC. |
| title | Doubly charged Higgs production within the Higgs triplet model at future electron-positron colliders |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2604.05924 |