Hollow cone sieve for top tagging

Details Hollow cone sieve for top tagging Hollow cone sieve for top tagging

2011-10-10

arxiv.org/abs/1110.2214v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

proceedings of DPF 2011 conference. arXiv admin note: essentially identical to arXiv:1102.3183

Scientific paper

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) \geq 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. Our simulations are made for the LHC at 7 TeV.

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