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arXiv · 1411.0665

Building a Better Boosted Top Tagger

Andrew J. Larkoski·Ian Moult·Duff Neill
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Abstract

Distinguishing hadronically decaying boosted top quarks from massive QCD jets is an important challenge at the Large Hadron Collider. In this paper we use the power counting method to study jet substructure observables designed for top tagging, and gain insight into their performance. We introduce a powerful new family of discriminants formed from the energy correlation functions which outperform the widely used N-subjettiness. These observables take a highly non-trivial form, demonstrating the importance of a systematic approach to their construction.

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Andrew J. Larkoski, Ian Moult, Duff Neill. 2016-06-22. Building a Better Boosted Top Tagger. https://doi.org/10.1103/physrevd.91.034035

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