Electroweak Top Couplings, Partial Compositeness and Top Partner Searches

Abstract

Partial top quark compositeness is a crucial aspect of theories with strong electroweak symmetry breaking. Together with the heavy top partners that lift the top quark mass to its observed value, these theories predict correlated modifications of the top quark's electroweak couplings. Associated measurements therefore provide direct constraints on the ultraviolet structure of the underlying hypercolour dynamics. In this paper we employ a minimal version of top compositeness to discuss how measurements related to the top's electroweak gauge interactions can inform the potential composite nature of the TeV scale. In doing so, we identify the dominant factors that limit the BSM sensitivity. Extrapolating to a future 100 TeV hadron collider, we demonstrate that top quark measurements performed at highest precision can provide complementary information to resonance search by performing a representative resonant top partner search that specifically targets the correlated resonant electroweak top partner signatures.

14 pages, 5 figures, 1 table; v2: version accepted in PRD

References in corpus (101)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• The anti-k_t jet clustering algorithm
• An Introduction to PYTHIA 8.2
• FastJet user manual
• FeynRules 2.0 - A complete toolbox for tree-level phenomenology
• MadGraph 5 : Going Beyond
• Dimension-Six Terms in the Standard Model Lagrangian
• PDF4LHC recommendations for LHC Run II
• Dispelling the N^3 myth for the Kt jet-finder
• The Minimal Composite Higgs Model
• UFO - The Universal FeynRules Output
• FeynRules - Feynman rules made easy
• The Strongly-Interacting Light Higgs
• Automatic spin-entangled decays of heavy resonances in Monte Carlo simulations
• Higgs as a Holographic Pseudo-Goldstone Boson
• Rivet user manual
• A custodial symmetry for Zbb
• Light custodians in natural composite Higgs models
• The Composite Nambu-Goldstone Higgs
• Observation of Higgs boson production in association with a top quark pair at the LHC with the ATLAS detector
• Fat Jets for a Light Higgs
• Composite Higgses
• Warped/Composite Phenomenology Simplified
• Stop Reconstruction with Tagged Tops
• Fermionic UV completions of Composite Higgs models
• Light Top Partners for a Light Composite Higgs
• A First Top Partner Hunter's Guide
• General Composite Higgs Models
• The SMEFTsim package, theory and tools
• Angular correlations of lepton pairs from vector boson and top quark decays in Monte Carlo simulations
• A Monte Carlo global analysis of the Standard Model Effective Field Theory: the top quark sector
• O new physics, where art thou? A global search in the top sector
• Constraining Effective Field Theories with Machine Learning
• The Composite Higgs and Light Resonance Connection
• ALOHA: Automatic Libraries Of Helicity Amplitudes for Feynman diagram computations
• A Guide to Constraining Effective Field Theories with Machine Learning
• Constraining top quark effective theory in the LHC Run II era
• Gauge theories of Partial Compositeness: Scenarios for Run-II of the LHC
• Implications of a Light Higgs in Composite Models
• UV Completions of Partial Compositeness: The Case for a SU(4) Gauge Group
• Flavor and CP Invariant Composite Higgs Models
• Higgs Low-Energy Theorem (and its corrections) in Composite Models
• Fundamental Composite Higgs Dynamics on the Lattice: SU(2) with Two Flavors
• Measurement of the W boson polarization in top quark decays with the ATLAS detector
• Measurement of the $t\bar{t}Z$ and $t\bar{t}W$ cross sections in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• On the Interpretation of Top Partners Searches
• Manifestations of Top Compositeness at Colliders
• Spectroscopy of SU(4) composite Higgs theory with two distinct fermion representations
• Top Compositeness and Precision Unification
• An improved determination of the width of the top quark
• Observation of s-channel production of single top quarks at the Tevatron
• Baryon spectrum of SU(4) composite Higgs theory with two distinct fermion representations
• Machine Learning Uncertainties with Adversarial Neural Networks
• $B$ decay anomalies and dark matter from vectorlike confinement
• Top-Quark Physics at the CLIC Electron-Positron Linear Collider
• The electro-weak couplings of the top and bottom quarks -- global fit and future prospects
• Measurement of top quark pair production in association with a Z boson in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Measurement of the inclusive cross-sections of single top-quark and top-antiquark $t$-channel production in $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector
• Di-boson signatures as Standard Candles for Partial Compositeness
• Tevatron Combination of Single-Top-Quark Cross Sections and Determination of the Magnitude of the Cabibbo-Kobayashi-Maskawa Matrix Element ${\mathbf{V}}_{\mathbf{tb}}$
• Composite MFV and Beyond
• Fundamental partial compositeness
• Global and optimal probes for the top-quark effective field theory at future lepton colliders
• Measurement of the cross-section for producing a $W$ boson in association with a single top quark in $pp$ collisions at $\sqrt{s}=13$ TeV with ATLAS
• Higgs Physics: It ain't over till it's over
• Measurement of the production cross-section of a single top quark in association with a $Z$ boson in proton--proton collisions at 13 TeV with the ATLAS detector
• Partial compositeness and baryon matrix elements on the lattice
• Observation of top quark pairs produced in association with a vector boson in pp collisions at sqrt(s) = 8 TeV
• A General Analysis of Wtb anomalous Couplings
• EFTfitter---A tool for interpreting measurements in the context of effective field theories
• Measurement of the $t\bar{t}W$ and $t\bar{t}Z$ production cross sections in $pp$ collisions at $\sqrt{s}=8\mathrm{Te}\mathrm{V}$ with the ATLAS detector
• Measurement of the production cross section for single top quarks in association with W bosons in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Measurement of the $W$ boson polarisation in $t\bar{t}$ events from $pp$ collisions at $\sqrt{s}$ = 8 TeV in the lepton+jets channel with ATLAS
• Measurement of the single top quark and antiquark production cross sections in the $t$ channel and their ratio in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Boosting Top Partner Searches in Composite Higgs Models
• Measurement of the W-boson helicity in top-quark decays from ttbar production in lepton+jets events in pp collisions at sqrt(s) = 7 TeV
• Top quark induced effective potential in a composite Higgs model
• Spectroscopy of SU(4) gauge theory with two flavors of sextet fermions
• Effective potential in ultraviolet completions for composite Higgs models
• A Direct Measurement of the Total Decay Width of the Top Quark
• Top Partner Discovery in the $T\to tZ$ channel at the LHC
• Observation of single top quark production in association with a Z boson in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Constraining the Intrinsic Structure of Top-Quarks
• Repurposing lattice QCD results for composite phenomenology
• Direct top-quark decay width measurement in the $t\bar{t}$ lepton+jets channel at $\sqrt{s}$=8 TeV with the ATLAS experiment
• Search for top quark partners with charge 5/3 in the same-sign dilepton and single-lepton final states in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Top quark electroweak couplings at future lepton colliders
• Probing $Zt\bar{t}$ couplings using $Z$ boson polarization in $ZZ$ production at hadron colliders
• An Ultraviolet Chiral Theory of the Top for the Fundamental Composite (Goldstone) Higgs
• Measurement of W-Boson Polarization in Top-quark Decay using the Full CDF Run II Data Set
• Minimal Fundamental Partial Compositeness
• Radiative contribution to the effective potential in composite Higgs models from lattice gauge theory
• Combinations of single-top-quark production cross-section measurements and $|f_{\mathrm{LV}}{V}_{tb}|$ determinations at $\sqrt{s}=7$ and 8 TeV with the ATLAS and CMS experiments
• A UV Complete Compositeness Scenario: LHC Constraints Meet The Lattice
• EFTs meet Higgs Nonlinearity, Compositeness and (Neutral) Naturalness
• Top quark mass measurement in radiative events at electron-positron colliders
• Constraints on top quark non-standard interactions from Higgs and $t\bar{t}$ production cross sections
• Introduction to Effective Field Theory
• Same-sign W pair production in composite Higgs models
• Single top production at linear $e^{-}{e}^{+}$ colliders
• Probing a new strongly interacting sector via composite diboson resonances

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• Doubling down on down-type diquarks