Abstract
The performance of top taggers, for example in resonance searches, can be significantly enhanced through an increased set of variables, with a special focus on final-state radiation. We study the production and the decay of a heavy gauge boson in the upcoming LHC run. For constant signal efficiency, the multivariate analysis achieves an increased background rejection by up to a factor 30 compared to our previous tagger. Based on this study and the documentation in the appendix we release a new HEPTopTagger2 for the upcoming LHC run. It now includes an optimal choice of the size of the fat jet, N-subjettiness, and different modes of Qjets.
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Kasieczka, G., Plehn, T., Schell, T. et al. Resonance searches with an updated top tagger. J. High Energ. Phys. 2015, 203 (2015). https://doi.org/10.1007/JHEP06(2015)203
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DOI: https://doi.org/10.1007/JHEP06(2015)203