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Study of Tau-Jet Identification in CMS

We present the methods for off-line tau-jet identification developed for the study of tau-tau decay modes of the neutral SUSY Higgses of mass 140 - 300 GeV in CMS. Detector response is simulated with a GEANT-based package CMSIM. Involving calorimetry and tracker information, tau-jet selection criter...

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Detalles Bibliográficos
Autores principales: Kinnunen, Ritva, Nikitenko, Alexander
Lenguaje:eng
Publicado: 1997
Materias:
Acceso en línea:http://cds.cern.ch/record/687274
Descripción
Sumario:We present the methods for off-line tau-jet identification developed for the study of tau-tau decay modes of the neutral SUSY Higgses of mass 140 - 300 GeV in CMS. Detector response is simulated with a GEANT-based package CMSIM. Involving calorimetry and tracker information, tau-jet selection criteria allow to reduce the backgrounds to an acceptable level while keeping the tau selection efficiency at the level of 30%. We investigate the rejection against backgrounds that can be achieved applying in sequence cuts: i) in collimation of electromagnetic energy, ii) in overall ECAL+HCAL isolation and iii) finally, using also the track information by demanding a single hard track with variable threshold in the jet.