2024/09/01 by Khiem Hong Phan, Phan, Khiem Hong, Dzung Tri Tran +3
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.2409.00662
openalex publication_date 2024/09/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/03
In this paper, we present a phenomenological analysis of one-loop induced processes γγ→ ϕiϕj, where the CP-even Higgs bosons are denoted as ϕi,j ≡ 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 (∼ 2 MH^±). Furthermore, the enhancement factors, defined as the ratios of cross sections of γγ→ ϕiϕj in the investigated models to those for γγ→ 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 (MH^±,~μ22) and (MH^±,~λ2). In the Two Higgs Doublet Model, the factors are examined in the planes defined by (MH^±,~tβ) as well as in the space of the charged Higgs mass MH^± and the soft-breaking Z2 parameter m122. Two scenarios characterized by cβ-α > 0 and cβ-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→ hH on m122 provides a potential probe of the soft Z2-breaking scale in the Two Higgs Doublet Model.