Di-Higgs production via Axion-Like Particles
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arXiv
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| Hauptverfasser: | , , , , |
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| Format: | Preprint |
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2024
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| author | Esser, Fabian Madigan, Maeve Salas-Bernardez, Alexandre Sanz, Veronica Ubiali, Maria |
| author_facet | Esser, Fabian Madigan, Maeve Salas-Bernardez, Alexandre Sanz, Veronica Ubiali, Maria |
| contents | Due to the pseudo-scalar nature of the axion-like particle (ALP), the CP- conserving production of two Higgs bosons via the ALP necessarily involves an additional Z or $γ$ boson. We examine the existing constraints from di-Higgs searches at Run 2 of the LHC and find that, despite the presence of extra objects in the final state, these searches are sensitive to a combination of ALP couplings to gluons and three-bosons in the TeV scale range. Additionally, we propose a specialized search strategy incorporating an energetic leptonic Z boson. This refined ALP-induced production process would allow for the identification of the h h $\rightarrow$ 4 b-jet final state and could potentially probe the TeV scale using data from Run 2 of the LHC. This production process can also occur through a coupling between the top quark and the ALP. We translate the current constraints on di-Higgs production into new limits on the ALP-top coupling. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_08062 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Di-Higgs production via Axion-Like Particles Esser, Fabian Madigan, Maeve Salas-Bernardez, Alexandre Sanz, Veronica Ubiali, Maria High Energy Physics - Phenomenology Due to the pseudo-scalar nature of the axion-like particle (ALP), the CP- conserving production of two Higgs bosons via the ALP necessarily involves an additional Z or $γ$ boson. We examine the existing constraints from di-Higgs searches at Run 2 of the LHC and find that, despite the presence of extra objects in the final state, these searches are sensitive to a combination of ALP couplings to gluons and three-bosons in the TeV scale range. Additionally, we propose a specialized search strategy incorporating an energetic leptonic Z boson. This refined ALP-induced production process would allow for the identification of the h h $\rightarrow$ 4 b-jet final state and could potentially probe the TeV scale using data from Run 2 of the LHC. This production process can also occur through a coupling between the top quark and the ALP. We translate the current constraints on di-Higgs production into new limits on the ALP-top coupling. |
| title | Di-Higgs production via Axion-Like Particles |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2404.08062 |