A new Higgs effective field theory and the new no-lose theorem

Abstract

Non-decoupling effects of heavy new particles cannot be described by the standard effective field theory with finite truncation of higher dimensional operators. We propose a new effective field theory in which non-decoupling quantum effects of new physics are correctly described. We discuss vacuum stability and perturbative unitarity in our effective field theory, and we find that the scale of new physics can be estimated if we will observe the Higgs coupling deviation via non-decoupling effects in future collider experiments.

34 pages and 6 figures

References in corpus (5)

• A Higgs-Higgs bound state due to New Physics at a TeV
• Is SMEFT Enough?
• Unitarity Violation and the Geometry of Higgs EFTs
• Non-Decoupling New Particles
• Does unitarity imply finiteness of electroweak oblique corrections at one-loop? - constraining extra neutral Higgs bosons -

Cited by in corpus (5)

• SMEFT effects on gravitational wave spectrum from electroweak phase transition
• Electroweak phase transition in the nearly aligned Higgs effective field theory
• Strongly first-order electroweak phase transition by relatively heavy additional Higgs bosons
• Probing double-aligned two Higgs doublet models at LHC
• Gravitational waves from patterns of electroweak symmetry breaking: an effective perspective