TL;DR
This paper introduces a 'hollow cone' top tagging method that uses jet substructure analysis to distinguish top quark events from QCD background in high-energy collisions.
Contribution
The paper presents a novel top tagging technique utilizing jet substructure and the anti-kt algorithm to effectively identify top quark events.
Findings
Successfully reconstructs W-mass from sub-jets
Effectively tags b-jets in top events
Distinguishes top events from QCD dijets
Abstract
A method of top tagging is introduced. Using the anti-kt algorithm to define jets, events with nj = 2 fat jets of cone size R = 1.5 are decomposed into R = 0.6 sub-jets and retained if nj (R= 0.6) >= 4 . One pair of sub-jets reconstructs the W-mass and another jet is tagged as a b-jet, as necessary for hadronic or semileptonic events of tt origin. This 'hollow cone' method distinguishes the tt events from the light parton QCD dijet events.
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