Measurement of the Mis-identification Probability of τ Leptons from Hadronic Jets and from Electrons

Measurements of the mis-identification probability of QCD jets and electrons as hadronically decaying τ leptons using tag-and-probe methods are described. The analyses are based on 35pb−1 of proton-proton collision data, taken by the ATLAS experiment at a center-of-mass energy of sqrt(s) = 7 TeV. Th...

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Detalles Bibliográficos
Autor principal: The ATLAS collaboration
Lenguaje:eng
Publicado: 2011
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/1375550
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author The ATLAS collaboration
author_facet The ATLAS collaboration
author_sort The ATLAS collaboration
collection CERN
description Measurements of the mis-identification probability of QCD jets and electrons as hadronically decaying τ leptons using tag-and-probe methods are described. The analyses are based on 35pb−1 of proton-proton collision data, taken by the ATLAS experiment at a center-of-mass energy of sqrt(s) = 7 TeV. The mis-identification probabilities range between 10% and 0.1% for QCD jets, and about (1 − 2)% for electrons. They depend on the identification algorithm chosen, the pT and the number of prongs of the τ candidate, and on the amount of pile up present in the event.
id cern-1375550
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2011
record_format invenio
spelling cern-13755502021-04-18T19:37:16Zhttp://cds.cern.ch/record/1375550engThe ATLAS collaborationMeasurement of the Mis-identification Probability of τ Leptons from Hadronic Jets and from ElectronsDetectors and Experimental TechniquesMeasurements of the mis-identification probability of QCD jets and electrons as hadronically decaying τ leptons using tag-and-probe methods are described. The analyses are based on 35pb−1 of proton-proton collision data, taken by the ATLAS experiment at a center-of-mass energy of sqrt(s) = 7 TeV. The mis-identification probabilities range between 10% and 0.1% for QCD jets, and about (1 − 2)% for electrons. They depend on the identification algorithm chosen, the pT and the number of prongs of the τ candidate, and on the amount of pile up present in the event.ATLAS-CONF-2011-113oai:cds.cern.ch:13755502011-08-17
spellingShingle Detectors and Experimental Techniques
The ATLAS collaboration
Measurement of the Mis-identification Probability of τ Leptons from Hadronic Jets and from Electrons
title Measurement of the Mis-identification Probability of τ Leptons from Hadronic Jets and from Electrons
title_full Measurement of the Mis-identification Probability of τ Leptons from Hadronic Jets and from Electrons
title_fullStr Measurement of the Mis-identification Probability of τ Leptons from Hadronic Jets and from Electrons
title_full_unstemmed Measurement of the Mis-identification Probability of τ Leptons from Hadronic Jets and from Electrons
title_short Measurement of the Mis-identification Probability of τ Leptons from Hadronic Jets and from Electrons
title_sort measurement of the mis-identification probability of τ leptons from hadronic jets and from electrons
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/1375550
work_keys_str_mv AT theatlascollaboration measurementofthemisidentificationprobabilityoftleptonsfromhadronicjetsandfromelectrons

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