Positivity bounds on vector boson scattering at the LHC

Abstract

Weak vector boson scattering (VBS) is a sensitive probe of new physics effects in the electroweak symmetry breaking. Currently, experimental results at the LHC are interpreted in the effective field theory approach, where possible deviations from the Standard Model in the quartic-gauge-boson couplings are often described by 18 dimension-8 operators. By assuming that a UV completion exists, we derive a new set of theoretical constraints on the coefficients of these operators, i.e. certain combinations of coefficients must be positive. These constraints imply that the current effective approach to VBS has a large redundancy: only about $2\%$ of the full parameter space leads to a UV completion. By excluding the remaining unphysical region of the parameter space, these constraints provide guidance for future VBS studies and measurements.

11 pages, 3 figures, 1 table

References in corpus (30)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Causality, Analyticity and an IR Obstruction to UV Completion
• Updated Global SMEFT Fit to Higgs, Diboson and Electroweak Data
• p p -> j j e+/- mu+/- nu nu and j j e+/- mu-/+ nu nu at O(α_{em}^6) and O(α_{em}^4 α_s^2) for the Study of the Quartic Electroweak Gauge Boson Vertex at LHC
• Amplitudes' Positivity, Weak Gravity Conjecture, and Modified Gravity
• Study of vector boson scattering and search for new physics in events with two same-sign leptons and two jets
• The Gauge-Higgs Legacy of the LHC Run II
• Positivity Bounds for Massive Spin-1 and Spin-2 Fields
• Positivity constraints on aQGC: carving out the physical parameter space
• Symmetries, Sum Rules and Constraints on Effective Field Theories
• Positivity of Curvature-Squared Corrections in Gravity
• Falsifying Models of New Physics Via WW Scattering
• Measurement of vector boson scattering and constraints on anomalous quartic couplings from events with four leptons and two jets in proton-proton collisions at sqrt(s) = 13 TeV
• Positivity Constraints for Pseudo-linear Massive Spin-2 and Vector Galileons
• Measurement of electroweak WZ boson production and search for new physics in WZ $+$ two jets events in pp collisions at $\sqrt{s}=$ 13 TeV
• Search for anomalous electroweak production of vector boson pairs in association with two jets in proton-proton collisions at 13 TeV
• Dispersion Relation Bounds for pi pi Scattering
• ZZ and Zgamma still haven't found what they are looking for
• Bounds on Amplitudes in Effective Theories with Massive Spinning Particles
• Unitarity Constraints on Dimension-Six Operators
• Unitarity Constraints on Dimension-six Operators II: Including Fermionic Operators
• Diboson at the LHC vs LEP
• The Other Fermion Compositeness
• Search for anomalous electroweak production of $WW/WZ$ in association with a high-mass dijet system in $pp$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
• Causal vs. Analytic constraints on anomalous quartic gauge couplings
• Transversal Modes and Higgs Bosons in Electroweak Vector-Boson Scattering at the LHC
• Studies of Dimension-Six EFT effects in Vector Boson Scattering
• Vector-Boson Fusion and Vector-Boson Scattering
• Scattering of W and Z Bosons at High-Energy Lepton Colliders

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• Bootstrapping Pions at Large $N$
• Bounding Violations of the Weak Gravity Conjecture
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• Positivity Constraints on Interacting Spin-2 Fields
• Elastic positivity vs extremal positivity bounds in SMEFT: a case study in transversal electroweak gauge-boson scatterings
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• Causality, Unitarity and Symmetry in Effective Field Theory
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• Positivity in electron-positron scattering: testing the axiomatic quantum field theory principles and probing the existence of UV states
• Triple crossing positivity bounds for multi-field theories
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• SMEFTs living on the edge: determining the UV theories from positivity and extremality
• Signs, Spin, SMEFT: Sum Rules at Dimension Six
• Studies of Dimension-Six EFT effects in Vector Boson Scattering
• Moments for positivity: using Drell-Yan data to test positivity bounds and reverse-engineer new physics
• Constraints on anomalous quartic gauge couplings via $W\gamma jj$ production at the LHC
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• Amplitude's positivity vs. subluminality: Causality and Unitarity Constraints on dimension 6 & 8 Gluonic operators in the SMEFT
• Tri-photon at muon collider: a new process to probe the anomalous quartic gauge couplings
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• Testing anomalous $H-W$ couplings and Higgs self-couplings via double and triple Higgs production at $e^{+}{e}^{-}$ colliders
• UV physics from IR features: new prospects from top flavor violation
• Extract the energy scale of anomalous $\gamma \gamma \to W^{+}{W}^{-}$ scattering in the vector boson scattering process using artificial neural networks
• Renormalisation of SMEFT bosonic interactions up to dimension eight by LNV operators
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• Detect anomalous quartic gauge couplings at muon colliders with quantum kernel k-means
• Optimize the event selection strategy to study the anomalous quartic gauge couplings at muon colliders using the support vector machine and quantum support vector machine
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• Search for Neutral Triple Gauge Couplings with $ZZ$ Production at Future Electron Positron Colliders
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• Search for anomalous quartic gauge couplings in the process ${\mu }^{+}{\mu }^{-}\to \bar{\nu }\nu \gamma \gamma$ with a nested local outlier factor
• Quantifying EFT Uncertainties in LHC Searches
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• Primal S-matrix bootstrap with dispersion relations
• The Rise of Linear Trajectories
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• Probing anomalous $\gamma \gamma \gamma Z$ couplings through $\gamma Z$ production in $\gamma \gamma$ collisions at the CLIC
• Dilepton production in the SMEFT at $\mathcal{O}(1/{\Lambda }^4)$