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Author  |
ter Hoeve, J.; Mantani, L.; Rojo, J.; Rossia, A.N.; Vryonidou, E. |
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Title |
Higgs trilinear coupling in the standard model effective field theory at the high luminosity LHC and the FCC-ee |
Type |
Journal Article |
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Year |
2025 |
Publication |
Physical Review D |
Abbreviated Journal |
Phys. Rev. D |
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Volume |
112 |
Issue |
1 |
Pages |
013008 - 7pp |
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Abstract |
Motivated by the updated high luminosity (HL)-LHC projections for Higgs pair production from ATLAS and CMS and by the release of the FCC-ee feasibility study, we critically revisit the sensitivity of the global standard model effective field theory (SMEFT) analysis to deformations of the Higgs self-coupling modifier kappa 3. To this end, we quantify the impact of SMEFT operators modifying double Higgs production at the LHC and single Higgs production, including loop corrections, at the FCC-ee, and include renormalization group evolution throughout. We demonstrate that significantly improving on the legacy ffiHL-LHC constraints on kappa 3 at the FCC-ee is not possible without thep = 365 GeV run; that individual s and marginalized determinations are similar at the HL-LHC while differing by up to a factor 3 at the FCC-ee; and that quadratic EFT corrections cannot be neglected, especially at the (HL-)LHC. This finding fundamentally alters the picture compared to strategic planning often based on one-parameter projections. Overall, the combination of HL-LHC and FCC-ee data offers unique potential to pin down the Higgs self-coupling with similar to 15% precision. |
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Address |
[ter Hoeve, Jaco] Univ Edinburgh, Higgs Ctr Theoret Phys, Mayfield Rd, Edinburgh EH9 3JZ, Scotland |
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Publisher |
Amer Physical Soc |
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Language |
English |
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Original Title |
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Series Volume |
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Edition |
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ISSN |
2470-0010 |
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Notes |
WOS:001543997000004 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
6781 |
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