Measurement of color flow in t-tbar events from p-pbar collisions at sqrt(s)=1.96 TeV

Abstract

We present the first measurement of the color representation of the hadronically decaying W boson in t-tbar events, from 5.3 fb^-1 of integrated luminosity collected with the D0 experiment. A novel calorimeter-based vectorial variable, "jet pull," is used, sensitive to the color-flow structure of the final state. We find that the fraction of uncolored W bosons is 0.56 +- 0.42(stat+syst), in agreement with the standard model.

arXiv commentSubmitted to Phys. Rev. Lett

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• Evidence for spin correlation in ttbar production
• Measurement of colour flow with the jet pull angle in $t\bar{t}$ events using the ATLAS detector at $\sqrt{s}=8$ TeV
• Resurrecting the Dead Cone
• Jet Substructure by Accident
• An Optimal Observable for Color Singlet Identification
• Boosted Multijet Resonances and New Color-Flow Variables
• The dependency of boosted tagging algorithms on the event colour structure
• Theory Predictions for the Pull Angle
• A comparative study of jet substructure taggers
• Top Quark Physics at the Tevatron
• Identifying the Quantum Properties of Hadronic Resonances using Machine Learning
• Tagging the Higgs boson decay to bottom quarks with colour-sensitive observables and the Lund jet plane