Constraining the Higgs potential with neural simulation-based inference for di-Higgs production

Determining the form of the Higgs potential is one of the most exciting challenges of modern particle physics. Higgs pair production directly probes the Higgs self-coupling and should be observed in the near future at the High-Luminosity LHC. We explore how to improve the sensitivity to physics beyo...

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Bibliographic Details
Main Authors: Mastandrea, Radha (Author) , Nachman, Benjamin (Author) , Plehn, Tilman (Author)
Format: Article (Journal)
Language:English
Published: 3 September, 2024
In: Physical review
Year: 2024, Volume: 110, Issue: 5, Pages: 1-20
ISSN:2470-0029
DOI:10.1103/PhysRevD.110.056004
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.1103/PhysRevD.110.056004
Verlag, kostenfrei, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.110.056004
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Author Notes:Radha Mastandrea, Benjamin Nachman, and Tilman Plehn
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Summary:Determining the form of the Higgs potential is one of the most exciting challenges of modern particle physics. Higgs pair production directly probes the Higgs self-coupling and should be observed in the near future at the High-Luminosity LHC. We explore how to improve the sensitivity to physics beyond the Standard Model through per-event kinematics for di-Higgs events. In particular, we employ machine learning through simulation-based inference to estimate per-event likelihood ratios and gauge potential sensitivity gains from including this kinematic information. In terms of the Standard Model Effective Field Theory, we find that adding a limited number of observables can help to remove degeneracies in Wilson coefficient likelihoods and significantly improve the experimental sensitivity.
Item Description:Gesehen am 24.02.2025
Physical Description:Online Resource
ISSN:2470-0029
DOI:10.1103/PhysRevD.110.056004