Manifestations of Top Compositeness at Colliders

Abstract

We explore the possibility that the right-handed top quark is composite, identifying possible signatures of compositeness and how they might manifest themselves at the LHC and Tevatron. We perform a complete analysis of the dimension six modifications of the top coupling to gluons and find that cancellations among operators in the t\bar{t} rate allow for very low compositeness scales, but this can be drastically improved by looking at kinematic distributions. Turning to the LHC, we examine four top production from a dimension six four-top operator and estimate the LHC with 100 {\rm fb}^{-1} collected luminosity to be sensitive to compositeness scales as high as 5 TeV.

8 pages, 6 figures, updated figure 6, updated references, final version published in JHEP

References in corpus (41)

• MadGraph/MadEvent v4: The New Web Generation
• RS1, Custodial Isospin and Precision Tests
• Holography and Phenomenology
• Top-tagging: A Method for Identifying Boosted Hadronic Tops
• Four Generations and Higgs Physics
• Strategies to Identify Boosted Tops
• LHC Signals from Warped Extra Dimensions
• Top Production: Sensitivity to New Physics
• First measurement of the forward-backward charge asymmetry in top quark pair production
• The Bulk RS KK-gluon at the LHC
• Forward-Backward Asymmetry in Top Quark Production in ppbar Collisions at sqrt{s}=1.96 TeV
• Generalized Dimensional Analysis
• Beautiful Mirrors and Precision Electroweak Data
• Counting 4 pi 's in Strongly Coupled Supersymmetry
• LHC Signals for Warped Electroweak Neutral Gauge Bosons
• Top pair invariant mass distribution: a window on new physics
• Discovering the top partners at the LHC using same-sign dilepton final states
• Top Quark Compositeness: Feasibility and Implications
• QCD analysis of first b cross section data at 1.96 TeV
• Color-octet scalars at the LHC
• Top Compositeness at the Tevatron and LHC
• Massive color-octet bosons and pairs of resonances at hadron colliders
• Constraining Anomalous Top Quark Couplings at the Tevatron
• The Standard Model Partly Supersymmetric
• Kaluza-Klein Gluons as a Diagnostic of Warped Models
• Collider Phenomenology of Gauge-Higgs Unification Scenarios in Warped Extra Dimensions
• Color Sextet Scalars at the CERN Large Hadron Collider
• A Fat Higgs with a Fat Top
• Quantifying the performance of jet definitions for kinematic reconstruction at the LHC
• Colored Resonances at the Tevatron: Phenomenology and Discovery Potential in Multijets
• Generating a Fermion Mass Hierarchy in a Composite Supersymmetric Standard Model
• Search for ttbar resonances in the lepton plus jets final state in ppbar collisions at sqrt{s}=1.96TeV
• Diquark Higgs at LHC
• Effects of Top Compositeness
• Associated production of a Kaluza-Klein excitation of a gluon with a t t(bar) pair at the LHC
• Search for resonant ttbar production in ppbar collisions at sqrt{s}=1.96 TeV
• Limits on the Production of Narrow t-tbar Resonances in p-pbar Collisions at sqrt(s)=1.96 TeV
• Scenery from the Top: Study of the Third Generation Squarks at CERN LHC
• A Realistic Supersymmetric Model with Composite Quarks
• Search for Narrow t-tbar Resonances in ppbar Collisions at \root{s} = 1.8 TeV
• Top quark production at the Tevatron at NNLO

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• Boosting Beyond: A Novel Approach to Probing Top-Philic Resonances at the LHC
• Search for pair production of heavy particles decaying to a top quark and a gluon in the lepton+jets final state in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Hadroproduction of four top quarks in the POWHEG BOX