Di-Higgs production via axion-like particles
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...
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| Main Authors: | , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
October 23, 2024
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| In: |
Journal of high energy physics
Year: 2024, Issue: 10, Pages: 1-22 |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP10(2024)164 |
| Online Access: | Verlag, kostenfrei, Volltext: https://doi.org/10.1007/JHEP10(2024)164 Verlag, kostenfrei, Volltext: https://link.springer.com/article/10.1007/JHEP10(2024)164 
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| Author Notes: | Fabian Esser, Maeve Madigan, Alexandre Salas-Bernárdez, Veronica Sanz and Maria Ubiali |
| Summary: | 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 → 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. |
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| Item Description: | Gesehen am 30.04.2025 |
| Physical Description: | Online Resource |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP10(2024)164 |