Unitarity Constraints on Dimension-Six Operators

Abstract

We obtain the partial-wave unitarity constraints on dimension-six operators stemming from the analyses of vector boson and Higgs scattering processes as well as the inelastic scattering of standard model fermions into electroweak gauge bosons. We take into account all coupled channels, all possible helicity amplitudes, and explore a six-dimensional parameter space of anomalous couplings. Our analysis shows that for those operators affecting the Higgs couplings, present 90% confidence level constraints from global data analysis of Higgs and electroweak data are such that unitarity is not violated if $\sqrt{s}\le 3.2\mathrm{TeV}$. For the purely gauge-boson operator $O_{WWW}$, the present bounds from triple-gauge boson analysis indicate that within its presently allowed 90% confidence level range unitarity can be violated in $f{\bar{f}}^{\prime }\to V{V}^{\prime }$ at center-of-mass energy $\sqrt{s}\ge 2.4\mathrm{TeV}$.

15 pages, no figures

References in corpus (15)

• Dimension-Six Terms in the Standard Model Lagrangian
• The global electroweak fit at NNLO and prospects for the LHC and ILC
• Robust Determination of the Higgs Couplings: Power to the Data
• Constraining anomalous Higgs interactions
• Determining Triple Gauge Boson Couplings from Higgs Data
• Low-Energy Constraints on New Physics Revisited
• Probing nonstandard bosonic interactions via W-boson pair production at lepton colliders
• Longitudinal WW scattering in light of the "Higgs" discovery
• Higgs ultraviolet softening
• Light "Higgs", yet strong interactions
• Unitarity Constraints for Transverse Gauge Bosons at LEP and Supercolliders
• Unitarity and causality constraints in composite Higgs models
• Unitarity Constraints for New Physics Induced by dim-6 Operators
• Anomalous Weak Boson Couplings: Suggestions from Unitarity and Dynamics
• BSM constraints from EW measurements

Cited by in corpus (49)

• The Gauge-Higgs Legacy of the LHC Run I
• The Universal One-Loop Effective Action
• The Standard Model effective field theory at work
• Electroweak Sector Under Scrutiny: A Combined Analysis of LHC and Electroweak Precision Data
• Positivity bounds on vector boson scattering at the LHC
• Measurement of the W+ W- cross section in pp collisions at sqrt(s) = 8 TeV and limits on anomalous gauge couplings
• Single-top associated production with a $Z$ or $H$ boson at the LHC: the SMEFT interpretation
• Unitarity Constraints on Anomalous Quartic Couplings
• Unitarity Constraints on Dimension-six Operators II: Including Fermionic Operators
• The Higgs Trilinear Coupling and the Scale of New Physics
• SMEFT analysis of vector boson scattering and diboson data from the LHC Run II
• Measurement of the WZ production cross section in pp collisions at sqrt{s} = 7 and 8 TeV and search for anomalous triple gauge couplings at sqrt{s} = 8 TeV
• Exploring Extended Scalar Sectors with Di-Higgs Signals: A Higgs EFT Perspective
• Studies of Dimension-Six EFT effects in Vector Boson Scattering
• Constraints on anomalous quartic gauge couplings via $W\gamma jj$ production at the LHC
• Unitarization effects in EFT predictions of WZ scattering at the LHC
• The study of neutral triple gauge couplings in the process $e^{+}{e}^{-}\to Z\gamma$ including unitarity bounds
• Measuring the anomalous quartic gauge couplings in the $W^{+}{W}^{-}\to W^{+}{W}^{-}$ process at muon collider using artificial neural networks
• Constraints on anomalous quartic gauge couplings via $Z\gamma jj$ production at the LHC
• Inverse Amplitude Method for Perturbative Electroweak Symmetry Breaking Sector: The Singlet Higgs Portal as a Study Case
• Multi-Higgs Production and Unitarity in Vector-Boson Fusion at Future Hadron Colliders
• Higgs Coupling Measurements and the Scale of New Physics
• SM EFT effects in Vector-Boson Scattering at the LHC
• Unitarity constraints on ALP interactions
• Extract the energy scale of anomalous $\gamma \gamma \to W^{+}{W}^{-}$ scattering in the vector boson scattering process using artificial neural networks
• Light-Quark Dipole Operators at LHC
• Unitarity Bounds on Effective Field Theories at the LHC
• Investigating Unitarity in Presence of Anomalous Couplings
• Pinning down the gauge boson couplings in $WW\gamma$ production using forward proton tagging
• The Higgs boson and the physics of $WW$ scattering before and after Higgs discovery
• Dimension-six operators in Higgs pair production via vector-boson fusion at the LHC
• VBS studies in CMS
• Searching for gluon quartic gauge couplings at muon colliders using the auto-encoder
• Detect anomalous quartic gauge couplings at muon colliders with quantum kernel k-means
• Exploring Higgs-Photon Production at the LHC
• Shining light on magnetic monopoles through high-energy muon colliders
• Charged-current non-standard neutrino interactions at the LHC and HL-LHC
• Amplitudes and partial wave unitarity bounds
• Scattering unitarity with effective dimension-6 operators
• Hierarchy problem and dimension-six effective operators
• Dark Matter Constraints on Composite Higgs Models
• Tree-level unitarity constraints on heavy neutral leptons
• Search for anomalous quartic gauge couplings in the process ${\mu }^{+}{\mu }^{-}\to \bar{\nu }\nu \gamma \gamma$ with a nested local outlier factor
• Searching for the neutral triple gauge couplings in the process ${\mu }^{+}{\mu }^{-}\to \gamma \nu \bar{\nu }$ at muon colliders
• Perturbative unitarity constraints on generic Yukawa interactions
• Modified interactions in the top-quark electroweak sector: exploiting unitarity violating effects at the amplitude level to probe New Physics
• Positivity and partial wave unitarity bounds on ALP theories via amplitude methods
• Probing Neutral Triple Gauge Couplings at e- p colliders
• Searches for new interactions within the SMEFT framework at present and future colliders