Reconstruction and identification of τ lepton decays to hadrons and ντ at CMS

CMS Collaboration

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72 Scopus citations


This paper describes the algorithms used by the CMS experiment to reconstruct and identify τ → hadrons + νtau; decays during Run 1 of the LHC. The performance of the algorithms is studied in proton-proton collisions recorded at a centre-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 19.7 fb-1. The algorithms achieve an identification efficiency of 50-60%, with misidentification rates for quark and gluon jets, electrons, and muons between per mille and per cent levels.

Original languageEnglish (US)
Article numberP01019
JournalJournal of Instrumentation
Issue number1
StatePublished - Jan 29 2016

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Mathematical Physics


  • Large detector systems for particle and astroparticle physics
  • Particle identification methods


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