Particle identification methods; Large detector systems for particle and astroparticle physics
IOP PUBLISHING LTD
JOURNAL OF INSTRUMENTATION, v. 11, Article number P01019, Page. 1-1
This paper describes the algorithms used by the CMS experiment to reconstruct and identify tau -˃ hadrons + nu(tau) 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.