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| Format: | Preprint |
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2026
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| Online Access: | https://arxiv.org/abs/2604.22115 |
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| _version_ | 1866913058305081344 |
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| author | R, Edilson A. Reyes |
| author_facet | R, Edilson A. Reyes |
| contents | In this article, we study loop-induced Higgs decays into gauge bosons within the framework of Radiative Natural Supersymmetry. We reproduce the one-loop MSSM calculations for the Higgs partial decay widths into a Z boson-photon pair, two photons, and two gluons, providing the corresponding analytical expressions for the scattering amplitudes. We focus on the region of parameter space that maximizes the rare decay width of the process $h \to Zγ$, and analyze the correlated predictions for the remaining Higgs decay channels. In the selected region of parameter space, the $h \to Zγ$ decay width is enhanced, reaching a maximum value of $\simeq 7.5~\mathrm{keV}$, while remaining compatible with the current ATLAS measurement. At the same time, this region satisfies current Higgs constraints from the $h \to γγ$ and $h \to gg$ channels. The diphoton mode remains close to the Standard Model expectation, with deviations at the level of $\lesssim 5\%$. The gluon channel exhibits a stronger sensitivity to the considered region of parameter space, leading to a moderate suppression of about $12\%$ in the corresponding partial width. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_22115 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Loop-Induced Higgs Boson Decays into Gauge Bosons in Radiative Natural Supersymmetry R, Edilson A. Reyes High Energy Physics - Phenomenology In this article, we study loop-induced Higgs decays into gauge bosons within the framework of Radiative Natural Supersymmetry. We reproduce the one-loop MSSM calculations for the Higgs partial decay widths into a Z boson-photon pair, two photons, and two gluons, providing the corresponding analytical expressions for the scattering amplitudes. We focus on the region of parameter space that maximizes the rare decay width of the process $h \to Zγ$, and analyze the correlated predictions for the remaining Higgs decay channels. In the selected region of parameter space, the $h \to Zγ$ decay width is enhanced, reaching a maximum value of $\simeq 7.5~\mathrm{keV}$, while remaining compatible with the current ATLAS measurement. At the same time, this region satisfies current Higgs constraints from the $h \to γγ$ and $h \to gg$ channels. The diphoton mode remains close to the Standard Model expectation, with deviations at the level of $\lesssim 5\%$. The gluon channel exhibits a stronger sensitivity to the considered region of parameter space, leading to a moderate suppression of about $12\%$ in the corresponding partial width. |
| title | Loop-Induced Higgs Boson Decays into Gauge Bosons in Radiative Natural Supersymmetry |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2604.22115 |