Effective-Field-Theory Approach to Top-Quark Production and Decay

Abstract

We discuss new physics in top-quark interactions, using an effective field theory approach. We consider top-quark decay, single top production, and top-quark pair production. We identify 15 dimension-six operators that contribute to these processes, and we compute the deviation from the Standard Model induced by these operators. The results provide a systematic way of searching for (or obtaining bounds on) physics beyond the Standard Model.

24 pages, 12 figures; references added, typos corrected

References in corpus (10)

• First measurement of the forward-backward charge asymmetry in top quark pair production
• Threshold Resummation for the Top Quark Charge Asymmetry
• Single top quark production at LHC with anomalous Wtb couplings
• Probing anomalous Wtb couplings in top pair decays
• Top Compositeness at the Tevatron and LHC
• Search for New Physics via Single Top Production at the LHC
• Manifestations of Top Compositeness at Colliders
• ATLAS sensitivity to Wtb anomalous couplings in top quark decays
• T-odd correlations from CP violating anomalous top-quark couplings revisited
• Effective Field Theory for Top Quark Physics

Cited by in corpus (50)

• Extending the Standard Model Effective Field Theory with the Complete Set of Dimension-7 Operators
• Higgs production in association with a top-antitop pair in the Standard Model Effective Field Theory at NLO in QCD
• Probing the Tevatron t tbar asymmetry at LHC
• Top Quark Forward-Backward Asymmetry and Same-Sign Top Quark Pairs
• Measurement of the W boson polarization in top quark decays with the ATLAS detector
• No like-sign tops at Tevatron: Constraints on extended models and implications for the t tbar asymmetry
• Quantum SMEFT tomography: top quark pair production at the LHC
• LHC multijet events as a probe for anomalous dimension-six gluon interactions
• Effective field theory approach to top-quark decay at next-to-leading order in QCD
• Quantum entanglement and top spin correlations in SMEFT at higher orders
• Top Quark Physics at the LHC: A Review of the First Two Years
• Analysis of the CP structure of the Yukawa coupling between the Higgs boson and $\tau$ leptons in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Measurement of the charge asymmetry in dileptonic decays of top quark pairs in $pp$ collisions at $\sqrt{s}=7$ TeV using the ATLAS detector
• New directions for top quark polarization in the $t$-channel process
• Constraints on the Wtb vertex from early LHC data
• Studying the $Wtb$ vertex structure using recent LHC results
• The top quark electro-weak couplings after LHC Run 2
• Top Quark Anomalous Electromagnetic Couplings in Photon-Photon Scattering at the LHC
• Sensitivity to BSM effects in the Higgs $p_T$ spectrum within SMEFT
• Measurement of the $CP$ properties of Higgs boson interactions with $\tau$-leptons with the ATLAS detector
• Searches for anomalous $tqZ$ couplings from the trilepton signal of $tZ$ associated production at the 14 TeV LHC
• The Single Top Quark Physics
• Analysis of the $Wtb$ vertex from the measurement of triple-differential angular decay rates of single top quarks produced in the $t$-channel at $\sqrt{s}$ = 8 TeV with the ATLAS detector
• UV physics from IR features: new prospects from top flavor violation
• Characterising the Higgs boson with ATLAS data from Run 2 of the LHC
• Searches for the FCNC couplings from top-Higgs associated production signal with $h\to \gamma \gamma$ at the LHC
• Modeling of anomalous Wtb interactions using subsidiary fields
• Renormalization group-induced phenomena of top pairs from four-quark effective operators
• Search for $CP$ violation in ttH and tH production in multilepton channels in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Measurement of the inclusive and differential $\mathrm{t}\bar{\mathrm{t}}\gamma$ cross sections in the dilepton channel and effective field theory interpretation in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Bounds on the absorptive parts of the chromomagnetic and chromoelectric dipole moments of the top quark from LHC data
• Measurement of the polarisation of $W$ bosons produced in top-quark decays using dilepton events at $\sqrt{s}=13$ TeV with the ATLAS experiment
• Constraining New Physics with Single Top production at LHC
• SMEFT chromomagnetic dipole operator contributions to $t\bar{t}$ production at approximate NNLO in QCD
• Single Top Quark Production with and without a Higgs Boson
• Measurement of the polarisation of single top quarks and antiquarks produced in the $t$-channel at $\sqrt{s}=13$ TeV and bounds on the $tWb$ dipole operator from the ATLAS experiment
• Evidence for the charge asymmetry in $pp\to t\bar{t}$ production at $\sqrt{s}=13$ TeV with the ATLAS detector
• Probing Magnetic Moment Operators in $H\gamma$ Production and $H\to {\tau }^{+}{\tau }^{-}\gamma$ Rare Decay
• QCD correction to single top quark production at the ILC
• Measurement of the $\mathrm{t}\bar{\mathrm{t}}$ charge asymmetry in events with highly Lorentz-boosted top quarks in pp collisions at $\sqrt{s}$ = 13 TeV
• Top quark physics in the Large Hadron Collider era
• Staying on Top of SMEFT-Likelihood Analyses
• Scalar production and decay to top quarks including interference effects at NLO in QCD in an EFT approach
• Single top quark production at ultra-high energies
• Measurement of the inclusive and differential $\mathrm{t}\overline{\mathrm{t}}\gamma$ cross sections in the single-lepton channel and EFT interpretation at $\sqrt{s}$ = 13 TeV
• Limits on anomalous top quark gauge couplings from Tevatron and LHC data
• A Global Analysis of the Standard Model Effective Field Theory in the Production and Decay Channels of a Single Top Quark
• Analyzing $t\bar{t}Z$-couplings at the future $e^{-}p$ collider
• W-boson helicity fractions in top decay as probes of dimension-6 and dimension-8 SMEFT operators
• Probing effective operators in single top quark production in association with a lepton-neutrino pair