Measurement of the Z to tau tau cross section with the ATLAS detector

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The Z to tau tau cross section has been recently measured using data collected with the ATLAS detector corresponding to the integrated luminosity of 1.34 − 1.55 fb-1. The analysis is performed in three different final states determined by decay modes of the tau leptons - so-called electron + hadroni...

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Autor principal: Novakova, J
Lenguaje:eng
Publicado: 2012
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/1470954
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author Novakova, J
author_facet Novakova, J
author_sort Novakova, J
collection CERN
description The Z to tau tau cross section has been recently measured using data collected with the ATLAS detector corresponding to the integrated luminosity of 1.34 − 1.55 fb-1. The analysis is performed in three different final states determined by decay modes of the tau leptons - so-called electron + hadronic tau, muon + hadronic tau and electron + muon channels. Cross sections are measured separately in each final state in a fiducial kinematic phase space, and also extrapolated to the full phase space in the invariant mass region 66 − 116 GeV. The individual cross sections are combined together and the product of the total Z boson production cross section and Z to tau tau branching fraction is measured to be 0.92 ± 0.20(stat) ± 0.08(syst) ± 0.03(lumi) nb, in agreement with the NNLO theoretical expectation.
id cern-1470954
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2012
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spelling cern-14709542019-09-30T06:29:59Zhttp://cds.cern.ch/record/1470954engNovakova, JMeasurement of the Z to tau tau cross section with the ATLAS detectorDetectors and Experimental TechniquesThe Z to tau tau cross section has been recently measured using data collected with the ATLAS detector corresponding to the integrated luminosity of 1.34 − 1.55 fb-1. The analysis is performed in three different final states determined by decay modes of the tau leptons - so-called electron + hadronic tau, muon + hadronic tau and electron + muon channels. Cross sections are measured separately in each final state in a fiducial kinematic phase space, and also extrapolated to the full phase space in the invariant mass region 66 − 116 GeV. The individual cross sections are combined together and the product of the total Z boson production cross section and Z to tau tau branching fraction is measured to be 0.92 ± 0.20(stat) ± 0.08(syst) ± 0.03(lumi) nb, in agreement with the NNLO theoretical expectation.ATL-PHYS-SLIDE-2012-470oai:cds.cern.ch:14709542012-07-31
spellingShingle Detectors and Experimental Techniques
Novakova, J
Measurement of the Z to tau tau cross section with the ATLAS detector
title Measurement of the Z to tau tau cross section with the ATLAS detector
title_full Measurement of the Z to tau tau cross section with the ATLAS detector
title_fullStr Measurement of the Z to tau tau cross section with the ATLAS detector
title_full_unstemmed Measurement of the Z to tau tau cross section with the ATLAS detector
title_short Measurement of the Z to tau tau cross section with the ATLAS detector
title_sort measurement of the z to tau tau cross section with the atlas detector
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/1470954
work_keys_str_mv AT novakovaj measurementoftheztotautaucrosssectionwiththeatlasdetector

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