Probing Neutral Triple Gauge Couplings with $Z^{\ast }\gamma (\nu \bar{\nu }\gamma )$ Production at Hadron Colliders

Abstract

We study probes of neutral triple gauge couplings (nTGCs) via $Z^{\ast }\gamma$ production followed by off-shell decays $Z^{\ast }\to \nu \bar{\nu }$ at the LHC and future $pp$ colliders, including both CP-conserving (CPC) and CP-violating (CPV) couplings. We present the dimension-8 SMEFT operators contributing to nTGCs and derive the correct form factor formulation for the off-shell vertices $Z^{\ast }\gamma V^{\ast }$ ($V=Z,\gamma$) by matching them with the dimension-8 SMEFT operators. Our analysis includes new contributions enhanced by the large off-shell momentum of $Z^{\ast }$, beyond those of the conventional $Z\gamma V^{\ast }$ vertices with on-shell $Z\gamma$. We analyze the sensitivity reaches for probing the CPC/CPV nTGC form factors and the new physics scales of the dimension-8 nTGC operators at the LHC and future 100TeV $pp$ colliders. We compare our new predictions with the existing LHC measurements of CPC nTGCs in the $\nu \bar{\nu }\gamma$ channel and demonstrate the importance of our new method.

arXiv comment25 pages (including supplemental material), only minor refinements, to match the version of PRD(letter)

References in corpus (43)

• Asymptotic formulae for likelihood-based tests of new physics
• Dimension-Six Terms in the Standard Model Lagrangian
• Global QCD Analysis of Parton Structure of the Nucleon: CTEQ5 Parton Distributions
• New CTEQ global analysis of quantum chromodynamics with high-precision data from the LHC
• The Standard Model as an Effective Field Theory
• Updated Global SMEFT Fit to Higgs, Diboson and Electroweak Data
• Dimension-8 Operators in the Standard Model Effective Field Theory
• Top, Higgs, Diboson and Electroweak Fit to the Standard Model Effective Field Theory
• Complete Set of Dimension-8 Operators in the Standard Model Effective Field Theory
• Complete Higgs Sector Constraints on Dimension-6 Operators
• Electroweak precision observables and Higgs-boson signal strengths in the Standard Model and beyond: present and future
• Consistency of the Standard Model Effective Field Theory
• Improved Formalism for Precision Higgs Coupling Fits
• Signatures of the anomalous $Z\gamma$ and ZZ production at the lepton and hadron Colliders
• A basis of dimension-eight operators for anomalous neutral triple gauge boson interactions
• Probing New Physics of Cubic Higgs Interaction via Higgs Pair Production at Hadron Colliders
• 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
• The leptonic future of the Higgs
• Scales of Fermion Mass Generation and Electroweak Symmetry Breaking
• Sensitivities of Prospective Future e+e- Colliders to Decoupled New Physics
• The Equivalence Theorem And Its Radiative-Correction-Free Formulation For All R_xi Gauges
• Equivalence Theorem and Probing the Electroweak Symmetry Breaking Sector
• Off-shell structure of the anomalous Z and gamma self-couplings
• Proof of the Equivalence Theorem in the Chiral Lagrangian Formalism
• Estimating The Sensitivity Of The LHC To Electroweak Symmetry Breaking: Longitudinal-Goldstone Boson Equivalence As A Criterion
• Probing New Physics Scales from Higgs and Electroweak Observables at $e^{+}{e}^{-}$ Higgs Factory
• Dimension-6 Operator Analysis of the CLIC Sensitivity to New Physics
• 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
• Measurement of the $Z\gamma \to \nu \bar{\nu }\gamma$ production cross section in $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector and limits on anomalous triple gauge-boson couplings
• Probing CP-violating Higgs and gauge boson couplings in the Standard Model effective field theory
• On the choice of beam polarization in $e^{+}{e}^{-}\to ZZ/Z\gamma$ and anomalous triple gauge-boson couplings
• The study of neutral triple gauge couplings in the process $e^{+}{e}^{-}\to Z\gamma$ including unitarity bounds
• Scales of Mass Generation for Quarks, Leptons and Majorana Neutrinos
• 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
• Constraining CP violating operators in charged and neutral triple gauge couplings
• Bounds on the non-standard $W^{+}{W}^{-}\gamma$ couplings at the LHeC and the FCC-he
• Probing model-independent limits on $W^{+}{W}^{-}\gamma$ triple gauge boson vertex at the LHeC and the FCC-he
• 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

Cited by in corpus (9)

• UV Completion of Neutral Triple Gauge Couplings
• Searching for gluon quartic gauge couplings at muon colliders using the auto-encoder
• Probing CP-Violating Neutral Triple Gauge Couplings at Electron-Positron Colliders
• Non-diagonal contributions to $Z\gamma V^{\ast }$ vertex, polarizations and bounds on $Z\overline{t}q$ couplings
• Search for Neutral Triple Gauge Couplings with $ZZ$ Production at Future Electron Positron Colliders
• A quantum machine learning classifier to search for new physics
• $CP$-violating effects of the neutral triple gauge couplings in $Z(\ell \ell )\gamma$ production at the LHC
• Probing Neutral Triple Gauge Couplings via $ZZ$ Production at $e^{+}{e}^{-}$ Colliders with Machine Learning
• Probing Neutral Triple Gauge Couplings at e- p colliders