Classifying Standard Model Extensions Effectively with Precision Observables

Abstract

Effective theories are well established theoretical frameworks to describe the effect of energetically widely separated UV models on observables at lower energy scales. Due to the complexity of the effective theory when taking all the Standard Model symmetries and degrees of freedoms into account, tensioning the entire system in a completely agnostic way against experimental measurements results in constraints on the Wilson Coefficients of the effective operators that either bears little information or challenge intrinsic assumptions imposed on the effective field theory framework. In general, a specific high-scale extension of the Standard Model only induces a subset of all possible operators. Thus, by investigating which operators are induced by different classes of the Standard Model extensions and comparing to which precision observables they contribute, we show that it is possible to obtain an improved understanding of which UV model is realised in nature. We consider 15 UV models which are single scalar field extensions of the Standard Model and compute their dimension-6 operators after integrating out the heavy scalars up to 1-loop level. Only very few of these scenarios remain indistinguishable, while most of the models can be phenomenologically separated from one another. Most of these scenarios possess their own characteristic operator signature. Following the approach outlined here, a comparative analysis of a wide range of models will allow to assess at what level the effective field theory series can be truncated and which experimental measurements to prioritise.

19 pages, 9 figures

References in corpus (48)

• Dimension-Six Terms in the Standard Model Lagrangian
• Renormalization Group Evolution of the Standard Model Dimension Six Operators III: Gauge Coupling Dependence and Phenomenology
• Renormalization Group Evolution of the Standard Model Dimension Six Operators II: Yukawa Dependence
• Renormalization Group Evolution of the Standard Model Dimension Six Operators I: Formalism and lambda Dependence
• One Leptoquark to Rule Them All: A Minimal Explanation for $R_{D^{(\ast )}}$, $R_K$ and $(g-2{)}_{\mu }$
• Higgs Bosons in the Minimal Supersymmetric Standard Model with Explicit CP Violation
• Higgs Boson Studies at Future Particle Colliders
• Effective description of general extensions of the Standard Model: the complete tree-level dictionary
• Updated Global SMEFT Fit to Higgs, Diboson and Electroweak Data
• Baryon Number and Lepton Universality Violation in Leptoquark and Diquark Models
• Vacuum Stability Bounds in the Two-Higgs Doublet Model
• Renormalization Group Scaling of Higgs Operators and Γ(h -> γγ)
• The Gauge-Higgs Legacy of the LHC Run I
• New Mechanism for Neutrino Mass Generation and Triply Charged Higgs Bosons at the LHC
• The Universal One-Loop Effective Action
• CoDEx: Wilson coefficient calculator connecting SMEFT to UV theory
• Observable Effects of General New Scalar Particles
• Renormalization of dimension-six operators relevant for the Higgs decays $h\to \gamma \gamma ,\gamma Z$
• Putting SMEFT Fits to Work
• Towards consistent Electroweak Precision Data constraints in the SMEFT
• Phenomenology of scalar leptoquarks
• Matching scalar leptoquarks to the SMEFT at one loop
• On one-loop corrections in the standard model effective field theory; the $\Gamma (h\to \gamma \gamma )$ case
• Scaling and tuning of EW and Higgs observables
• Covariant diagrams for one-loop matching
• Complete One-Loop Matching for a Singlet Scalar in the Standard Model EFT
• Higgs coupling measurements at the LHC
• Extending the Universal One-Loop Effective Action: Heavy-Light Coefficients
• Mixed Heavy-Light Matching in the Universal One-Loop Effective Action
• Effective Theories and Measurements at Colliders
• Electroweak and QCD Corrections to $Z$ and $W$ pole observables in the SMEFT
• Color Sextet Scalars at the CERN Large Hadron Collider
• Standard Model EFT and Extended Scalar Sectors
• Completing the scalar and fermionic Universal One-Loop Effective Action
• Minimal Flavour Violation for Leptoquarks
• Validity of SMEFT studies of VH and VV Production at NLO
• The Fermionic Universal One-Loop Effective Action
• The decay $h\to \gamma \gamma$ in the Standard-Model Effective Field Theory
• Generation of Neutrino mass from new physics at TeV scale and Multi-lepton Signatures at the LHC
• Electroweak Corrections to Higgs to $\gamma \gamma$ and $W^{+}{W}^{-}$ in the SMEFT
• A Step Toward Model Comparison: Connecting Electroweak-Scale Observables to BSM through EFT and Bayesian Statistics
• Characters and Group Invariant Polynomials of (Super)fields: Road to "Lagrangian"
• Higgs characterisation in the presence of theoretical uncertainties and invisible decays
• Electroweak vacuum lifetime in two Higgs doublet models
• Hilbert Series and Plethystics: Paving the path towards 2HDM- and MLRSM-EFT
• ATLAS Violating CP Effectively
• Effective Operator Bases for Beyond Standard Model Scenarios: An EFT compendium for discoveries
• Singlet night in Feynman-ville: one-loop matching of a real scalar

Cited by in corpus (12)

• The Flavor of UV Physics
• Uncovering the High Scale Higgs Singlet Model
• Universal Scalar Leptoquark Action for Matching
• Computing Tools for Effective Field Theories
• Integrating out heavy scalars with modified EOMs: matching computation of dimension-eight SMEFT coefficients
• Effective Theories with Dark Matter Applications
• EFT Diagrammatica II: Tracing the UV origin of bosonic D6 CPV and D8 SMEFT operators
• Renormalisation of SMEFT bosonic interactions up to dimension eight by LNV operators
• To Profile or To Marginalize -- A SMEFT Case Study
• From the EFT to the UV: the complete SMEFT one-loop dictionary
• From Models to SMEFT and Back?
• Potential Blind Directions at TeraZ