Pushing Higgs Effective Theory over the Edge

Abstract

Based on a vector triplet model we study a possible failure of dimension-6 operators in describing LHC Higgs kinematics. First, we illustrate that including dimension-6 contributions squared can significantly improve the agreement between the full model and the dimension-6 approximation, both in associated Higgs production and in weak-boson-fusion Higgs production. Second, we test how a simplified model with an additional heavy scalar could improve the agreement in critical LHC observables. In weak boson fusion we find an improvement for virtuality-related observables at large energies, but at the cost of sizeable deviations in interference patterns and angular correlations.

19 pages. v2: references added. v3: minor corrections, more references added, matches published version

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Cited by in corpus (26)

• The Gauge-Higgs Legacy of the LHC Run II
• An NLO QCD effective field theory analysis of $W_{}^{+}{W}_{}^{-}$ production at the LHC including fermionic operators
• Better Higgs-CP Tests Through Information Geometry
• Light quark Yukawa couplings from Higgs kinematics
• LHC multijet events as a probe for anomalous dimension-six gluon interactions
• Better Higgs Measurements Through Information Geometry
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• Benchmarking simplified template cross sections in $WH$ production
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• Resolving the tensor structure of the Higgs coupling to $Z$-bosons via Higgs-strahlung
• SMEFT predictions for $gg\to hh$ at full NLO QCD and truncation uncertainties
• Consistent Searches for SMEFT Effects in Non-Resonant Dijet Events
• Matching Matters!
• Precision SMEFT bounds from the VBF Higgs at high transverse momentum
• A fully differential SMEFT analysis of the golden channel using the method of moments
• The Global Higgs Picture at 27 TeV
• To Profile or To Marginalize -- A SMEFT Case Study
• Dark Matter from Electroweak Single Top Production
• XEFT, the challenging path up the hill: dim = 6 and dim = 8
• Low energy behaviour of standard model extensions
• High energy lepton colliders as the ultimate Higgs microscopes
• Top quark physics in the Large Hadron Collider era
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• From Models to SMEFT and Back?
• Use and reuse of SMEFT