2012

Finding top quarks with shower deconstruction

Soper, Davison E., Spannowsky, Michael

Understand

We develop a new method for tagging jets produced by hadronically decaying top quarks.

  • The method is an application of shower deconstruction, a maximum information approach that was previously applied to identifying jets produced by Higgs bosons that decay to bottom quarks.
  • We tag an observed jet as a top jet based on a cut on a calculated variable that is an approximation to the ratio of the likelihood that a top jet would have the structure of the observed jet to the likelihood that a non-top QCD jet would have this structure.
  • We find that the shower deconstruction based tagger can perform better in discriminating boosted top quark jets from QCD jets than other publicly available tagging algorithms.

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