Non-perturbaitve effects in Higgs boson decays to electroweak vector bosons and photons
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arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866918227511083008 |
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| author | Khodjamirian, Alexander Melnikov, Kirill Vainshtein, Arkady |
| author_facet | Khodjamirian, Alexander Melnikov, Kirill Vainshtein, Arkady |
| contents | We estimate the magnitude of the leading non-perturbative QCD corrections to the decays of the Higgs boson to the $γZ$ and $γγ$ final states. These corrections originate from the light-quark contributions to such decays. We show that the non-perturbative effects are suppressed by the small Yukawa couplings of light quarks, but that there is no further quark-mass suppression. This is at variance with what is found in the standard perturbative calculations of the light-quark contributions. We demonstrate that the non-perturbative corrections modify the $H \to γZ$ and $H \to γγ$ decay rates by $O(10^{-5})$, well below the expected precision with which such decays can be studied both at the high-luminosity LHC and at future colliders. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_02165 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Non-perturbaitve effects in Higgs boson decays to electroweak vector bosons and photons Khodjamirian, Alexander Melnikov, Kirill Vainshtein, Arkady High Energy Physics - Phenomenology We estimate the magnitude of the leading non-perturbative QCD corrections to the decays of the Higgs boson to the $γZ$ and $γγ$ final states. These corrections originate from the light-quark contributions to such decays. We show that the non-perturbative effects are suppressed by the small Yukawa couplings of light quarks, but that there is no further quark-mass suppression. This is at variance with what is found in the standard perturbative calculations of the light-quark contributions. We demonstrate that the non-perturbative corrections modify the $H \to γZ$ and $H \to γγ$ decay rates by $O(10^{-5})$, well below the expected precision with which such decays can be studied both at the high-luminosity LHC and at future colliders. |
| title | Non-perturbaitve effects in Higgs boson decays to electroweak vector bosons and photons |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2512.02165 |