The New Formulation of Higgs Effective Field Theory

Abstract

We present the explicit construction of the effective field theory (EFT) of standard model mass eigenstates. The EFT, which is invariant under $U(1{)}_{\text{e.m.}}\times SU(3{)}_c$, is constructed based on the on-shell method and Young Tableau technique. This EFT serves as a new formulation of the Higgs EFT (HEFT), which can describe the infrared effects of new physics at the electroweak symmetry-breaking phase with greater conciseness. The current HEFT operator basis has a clear physical interpretation, making it more accessible for research in phenomenology. A complete list of HEFT operator bases for any-point vertices up to any dimension could be provided, and three- and four-point bases are provided as examples. Additionally, this framework realized as a Mathematica program can be used to construct the EFT of any type of dark matter or particles with any spin.

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• Jet Bundle Geometry of Scalar Field Theories
• The Art of Counting: a reappraisal of the HEFT expansion
• Primary Observables for Electroweak Gauge Boson Collider Signals
• Multi-Higgs Amplitudes Bootstrapped: Dissecting SMEFT and HEFT
• General Signals for Charged Lepton Flavor Violating Decays
• Quantifying EFT Uncertainties in LHC Searches
• Studying the VBF Hjj and Hjjj Higgs Boson Production in QCD and EFT Theory
• Massive Gauge Theories from Consistency Conditions of Amplitudes