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Precision SMEFT bounds from the VBF Higgs at high transverse momentum
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We study the production of Higgs bosons at high transverse momenta via vector-boson fusion (VBF) in the Standard Model Effective Field Theory (SMEFT). We find that contributions from four independent operator combinations dominate in this limit. These are the same `high energy primaries' that control high energy diboson processes, including Higgs-strahlung. We perform detailed collider simulations for the diphoton decay mode of the Higgs boson as well as the three final states arising from the ditau channel. Using the quadratic growth of the SMEFT contributions relative to the Standard Model (SM) contribution, we project very stringent bounds on these operators that far surpass the corresponding bounds from the LEP experiment.
Forward citations
Cited by 2 Pith papers
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EFT Validity and Truncation Uncertainty from few Nuisance Parameters
SMEFT truncation uncertainty at O(Λ^{-4}) can be modeled by K≪N representative Wilson coefficients plus a decorrelated α=√2 PCA prior that covers full next-order effects in DY, Zh, and VBF.
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Double Higgs Production in Vector Boson Fusion at NLO QCD in HEFT
Full NLO QCD predictions for pp -> hhjj production in VBF with HEFT couplings cλ, cV, c2V, including non-factorising and Higgs-strahlung diagrams, show that some allowed coupling combinations reshape key observables.
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