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arXiv · 1503.05921

Resonance Searches with an Updated Top Tagger

Gregor Kasieczka·Tilman Plehn·Torben Schell·Thomas Strebler·Gavin P. Salam
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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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Gregor Kasieczka, Tilman Plehn, Torben Schell, Thomas Strebler, Gavin P. Salam. 2015-03-19. Resonance Searches with an Updated Top Tagger. https://arxiv.org/abs/1503.05921

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