Di-Higgs production via axion-like particles

• Verfasst von: Esser, Fabian [VerfasserIn]
• Verfasst von: Madigan, Maeve [VerfasserIn]
• Verfasst von: Salas-Bernárdez, Alexandre [VerfasserIn]
• Verfasst von: Sanz, Veronica [VerfasserIn]
• Verfasst von: Ubiali, Maria [VerfasserIn]
• Titel: Di-Higgs production via axion-like particles
• Verf.angabe: Fabian Esser, Maeve Madigan, Alexandre Salas-Bernárdez, Veronica Sanz and Maria Ubiali
• E-Jahr: 2024
• Jahr: October 23, 2024
• Umfang: 22 S.
• Illustrationen: Illustrationen
• Fussnoten: Gesehen am 30.04.2025
• Titel Quelle: Enthalten in: Journal of high energy physics
• Ort Quelle: Berlin : Springer, 1997
• Jahr Quelle: 2024
• Band/Heft Quelle: (2024), 10, Artikel-ID 164, Seite 1-22
• ISSN Quelle: 1029-8479
• DOI: doi:10.1007/JHEP10(2024)164
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: Anomalous Higgs Couplings
• Sach-SW: Axions and ALPs
• Sach-SW: Electroweak Precision Physics
• Sach-SW: Experimental Particle Physics
• Sach-SW: Specific BSM Phenomenology
• K10plus-PPN: 1924022532

Abstract

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.