First N³LO QCD prediction for boosted WH production yields +2% corrections with sub-percent residual scale dependence.
Constraints on the trilinear Higgs coupling from vector boson fusion and associated Higgs production at the LHC
6 Pith papers cite this work, alongside 78 external citations. Polarity classification is still indexing.
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abstract
We examine the constraints on the trilinear Higgs coupling $\lambda$ that originate from associated ($Vh$) and vector boson fusion (VBF) Higgs production in $pp$ collisions in the context of the Standard Model effective field theory. The 1-loop contributions to $pp \to V h$ and $pp \to jj h$ that stem from insertions of the dimension-6 operator $O_6 = - \lambda \left (H^\dagger H \right )^3$ are calculated and combined with the ${\cal O} (\lambda)$ corrections to the partial decay widths of the Higgs boson. Employing next-to-next-to-leading order QCD predictions, we analyse the sensitivity of current and forthcoming measurements of the signal strengths in $Vh$ and VBF Higgs production to changes in $\lambda$. We show that future LHC runs may be able to probe modifications of $\lambda$ with a sensitivity similar to the one that is expected to arise from determinations of double-Higgs production. The sensitivity of differential $Vh$ and VBF Higgs distributions to a modified $h^3$ coupling is also studied.
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hep-ph 6representative citing papers
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SMEFT electroweak precision predictions can be upgraded to NLL accuracy using two-loop renormalization-group evolution plus one-loop matching, yielding complete 210-coefficient expressions and stronger indirect new-physics constraints.
A hybrid NSBI technique is presented for inferring the Higgs trilinear coupling via off-shell production in SMEFT, achieving near-theoretical-optimum sensitivity with expected HL-LHC constraints.
Anomalous Higgs couplings change the shape of the di-Higgs mass distribution, and an unsupervised clustering algorithm captures those shape differences more finely than a hand-defined taxonomy.
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