Processes $γγ\rightarrow ϕ_iϕ_j$ in Inert Higgs Doublet Models and Two Higgs Doublet Models
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2024
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| _version_ | 1866908306365218816 |
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| author | Phan, Khiem Hong Tran, Dzung Tri Nguyen, Thanh Huy |
| author_facet | Phan, Khiem Hong Tran, Dzung Tri Nguyen, Thanh Huy |
| contents | In this paper, we present a phenomenological analysis of one-loop induced processes $γγ\rightarrow ϕ_iϕ_j$, where the CP-even Higgs bosons are denoted as $ϕ_{i,j} \equiv h,~H$, in high-energy photon-photon collisions, within the frameworks of the Inert Higgs Doublet Model and the Two Higgs Doublet Model. The total cross sections are evaluated as functions of the center-of-mass energy, finding that the cross sections for the considered processes in all the models under investigation are significantly enhanced around the threshold for charged Higgs boson pair production ($\sim 2 M_{H^\pm}$). Furthermore, the enhancement factors, defined as the ratios of cross sections of $γγ\rightarrow ϕ_iϕ_j$ in the investigated models to those for $γγ\rightarrow hh$ in the Standard Model, are examined in the relevant regions of the model's parameter space. In the Inert Higgs Doublet Model, the factors are studied in the parameter space of $(M_{H^\pm},~μ^2_2)$ and $(M_{H^\pm},~λ_2)$. In the Two Higgs Doublet Model, the factors are examined in the planes defined by $(M_{H^\pm},~t_β)$ as well as in the space of the charged Higgs mass $M_{H^\pm}$ and the soft-breaking $Z_2$ parameter $m_{12}^2$. Two scenarios characterized by $c_{β-α} > 0$ and $c_{β-α} < 0$ are studied in further detail. The factors exhibit distinct behaviors between these two scenarios. As a result, it is possible to discriminate between them at future colliders. The dependence of the cross section for the process $γγ\rightarrow hH$ on $m_{12}^2$ provides a potential probe of the soft $Z_2$-breaking scale in the Two Higgs Doublet Model. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2409_00662 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Processes $γγ\rightarrow ϕ_iϕ_j$ in Inert Higgs Doublet Models and Two Higgs Doublet Models Phan, Khiem Hong Tran, Dzung Tri Nguyen, Thanh Huy High Energy Physics - Phenomenology In this paper, we present a phenomenological analysis of one-loop induced processes $γγ\rightarrow ϕ_iϕ_j$, where the CP-even Higgs bosons are denoted as $ϕ_{i,j} \equiv h,~H$, in high-energy photon-photon collisions, within the frameworks of the Inert Higgs Doublet Model and the Two Higgs Doublet Model. The total cross sections are evaluated as functions of the center-of-mass energy, finding that the cross sections for the considered processes in all the models under investigation are significantly enhanced around the threshold for charged Higgs boson pair production ($\sim 2 M_{H^\pm}$). Furthermore, the enhancement factors, defined as the ratios of cross sections of $γγ\rightarrow ϕ_iϕ_j$ in the investigated models to those for $γγ\rightarrow hh$ in the Standard Model, are examined in the relevant regions of the model's parameter space. In the Inert Higgs Doublet Model, the factors are studied in the parameter space of $(M_{H^\pm},~μ^2_2)$ and $(M_{H^\pm},~λ_2)$. In the Two Higgs Doublet Model, the factors are examined in the planes defined by $(M_{H^\pm},~t_β)$ as well as in the space of the charged Higgs mass $M_{H^\pm}$ and the soft-breaking $Z_2$ parameter $m_{12}^2$. Two scenarios characterized by $c_{β-α} > 0$ and $c_{β-α} < 0$ are studied in further detail. The factors exhibit distinct behaviors between these two scenarios. As a result, it is possible to discriminate between them at future colliders. The dependence of the cross section for the process $γγ\rightarrow hH$ on $m_{12}^2$ provides a potential probe of the soft $Z_2$-breaking scale in the Two Higgs Doublet Model. |
| title | Processes $γγ\rightarrow ϕ_iϕ_j$ in Inert Higgs Doublet Models and Two Higgs Doublet Models |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2409.00662 |