UV Completion of Neutral Triple Gauge Couplings

Abstract

Neutral triple gauge couplings (nTGCs) are manifestation of new physics beyond the Standard Model (SM), as they are absent in the SM and are first generated by dimension-8 operators in the SM Effective Field Theory (SMEFT). We study the UV completion of nTGCs in a renormalizable model with vector-like heavy fermions. We compute the one-loop heavy fermion contributions to nTGC vertices by matching them to dimension-8 operators in the low energy limit. Such fermion loops contain either heavy fermions only or mixture of heavy fermions with light SM fermions. We find that their contributions can induce dimension-8 nTGC effective operators containing two SM Higgs-doublet fields, which are formulated with a complete set of 7 dimension-8 operators generating off-shell CP-even nTGCs. We present the results in terms of SMEFT coefficients and in terms of nTGC vertices (form factors) with two on-shell gauge bosons. In the heavy-light mixing case there appear terms that cannot be accommodated by conventional parametrizations of form factors due to extra logarithmic corrections. We further discuss the implications for probing such UV dynamics via nTGCs at the high energy colliders.

Only minor refinements, to match PRD journal version, references added

References in corpus (33)

• Dimension-Six Terms in the Standard Model Lagrangian
• The Standard Model as an Effective Field Theory
• Facts of life with gamma(5)
• Asymptotic Expansions in Momenta and Masses and Calculation of Feynman Diagrams
• Foundation and generalization of the expansion by regions
• A basis of dimension-eight operators for anomalous neutral triple gauge boson interactions
• Probing the Scale of New Physics in the $ZZ\gamma$ Coupling at $e^{+}{e}^{-}$ Colliders
• Probing New Physics in Dimension-8 Neutral Gauge Couplings at $e^{+}{e}^{-}$ Colliders
• New and Standard Physics contributions to anomalous Z and gamma self-couplings
• Completing the scalar and fermionic Universal One-Loop Effective Action
• Off-shell structure of the anomalous Z and gamma self-couplings
• The Fermionic Universal One-Loop Effective Action
• STrEAMlining EFT Matching
• Functional Prescription for EFT Matching
• Evanescent Operators in One-Loop Matching Computations
• On the status of expansion by regions
• Dimensional Regularization and Breitenlohner-Maison / 't Hooft-Veltman Scheme for ${\gamma }_5$ applied to Chiral YM Theories: Full One-Loop Counterterm and RGE Structure
• On polarization parameters of spin-$1$ particles and anomalous couplings in $e^{+}{e}^{-}\to ZZ/Z\gamma$
• Probing the Effects of Dimension-eight Operators Describing Anomalous Neutral Triple Gauge Boson Interactions at FCC-hh
• Probing Neutral Triple Gauge Couplings at the LHC and Future Hadron Colliders
• The study of neutral triple gauge couplings in the process $e^{+}{e}^{-}\to Z\gamma$ including unitarity bounds
• On the choice of beam polarization in $e^{+}{e}^{-}\to ZZ/Z\gamma$ and anomalous triple gauge-boson couplings
• Measurement of the Z gamma to nu nu-bar gamma production cross section in pp collisions at sqrt(s) = 8 TeV and limits on anomalous Z-Z-gamma and Z-gamma-gamma trilinear gauge boson couplings
• Probing anomalous $ZZ\gamma$ and $Z\gamma \gamma$ Couplings at the $e^{+}{e}^{-}$ Colliders using Optimal Observable Technique
• Gauge Invariance and Finite Counterterms in Chiral Gauge Theories
• Constraining CP violating operators in charged and neutral triple gauge couplings
• Optimal estimation of Dimension-8 Neutral Triple Gauge Couplings at $e^{+}{e}^{-}$ Colliders
• Probing Neutral Triple Gauge Couplings with $Z^{\ast }\gamma (\nu \bar{\nu }\gamma )$ Production at Hadron Colliders
• Model-independent study on the anomalous $ZZ\gamma$ and $Z\gamma \gamma$ couplings at the future muon collider
• Probe of the anomalous neutral triple gauge couplings in photon-induced collision at future muon colliders
• A Note on Gauge Anomaly Cancellation in Effective Field Theories
• Probing Neutral Triple Gauge Couplings via $\mathbf{Z\gamma }({\mathbf{\ell }}^{+}{\mathbf{\ell }}^{-}\mathbf{\gamma })$ Production at ${\mathbf{e}}^{+}{\mathbf{e}}^{-}$ Colliders
• Search for the anomalous $ZZZ$ and $ZZ\gamma$ gauge couplings through the process $e^{+}{e}^{-}\to ZZ$ with unpolarized and polarized beams

Cited by in corpus (6)

• Probing CP-Violating Neutral Triple Gauge Couplings at Electron-Positron Colliders
• Search for Neutral Triple Gauge Couplings with $ZZ$ Production at Future Electron Positron Colliders
• Searching for the neutral triple gauge couplings in the process ${\mu }^{+}{\mu }^{-}\to \gamma \nu \bar{\nu }$ at muon colliders
• $CP$-violating effects of the neutral triple gauge couplings in $Z(\ell \ell )\gamma$ production at the LHC
• Probing Neutral Triple Gauge Couplings at e- p colliders
• Probing Neutral Triple Gauge Couplings via $ZZ$ Production at $e^{+}{e}^{-}$ Colliders with Machine Learning