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CMS; tau; LHC; ECAL; HCAL.

CMS has developed sophisticated tau identification algorithms for tau hadronic decay modes. Production of tau lepton decaying to hadrons are studied at 7 TeV centre-of-mass energy with 2011 collision data collected by CMS detector and has been used to measure the performance of tau identification algorithms by measuring identification efficiency and misidentification rates from electrons, muons and hadronic jets. These algorithms enable extended reach for the searches for MSSM Higgs, 𝑍 and other exotic particles.

Raman Khurana¹

1. Saha Institute of Nuclear Physics, 1/AF Bidhan Nagar, Kolkata 700 064, India