Measurement of the Z boson Production in Lead-Lead Collisions at sqrt(s_NN)=2.76 TeV with the ATLAS Detector

The ATLAS experiment has observed 1995 Z boson candidates with 0.15 nb−1 of integrated luminosity obtained in the 2011 LHC Pb+Pb run at sqrt(s_NN)=2.76 TeV. The Z bosons are reconstructed via di-electron and di-muon decay channels. The results from both channels are consistent with each other and ar...

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Autor principal: The ATLAS collaboration
Lenguaje:eng
Publicado: 2012
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/1451930
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author The ATLAS collaboration
author_facet The ATLAS collaboration
author_sort The ATLAS collaboration
collection CERN
description The ATLAS experiment has observed 1995 Z boson candidates with 0.15 nb−1 of integrated luminosity obtained in the 2011 LHC Pb+Pb run at sqrt(s_NN)=2.76 TeV. The Z bosons are reconstructed via di-electron and di-muon decay channels. The results from both channels are consistent with each other and are combined. The background is less than 3% of our selected sample. Within the statistical and systematic uncertainties, the per-event Z boson yield integrated over rapidity |yZ| < 2.5 is proportional to the number of binary collisions estimated by the Glauber model. The elliptic flow coefficient of the azimuthal distribution of the Z boson with respect to the event plane is consistent with zero.
id cern-1451930
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2012
record_format invenio
spelling cern-14519302021-04-18T19:37:33Zhttp://cds.cern.ch/record/1451930engThe ATLAS collaborationMeasurement of the Z boson Production in Lead-Lead Collisions at sqrt(s_NN)=2.76 TeV with the ATLAS DetectorDetectors and Experimental TechniquesThe ATLAS experiment has observed 1995 Z boson candidates with 0.15 nb−1 of integrated luminosity obtained in the 2011 LHC Pb+Pb run at sqrt(s_NN)=2.76 TeV. The Z bosons are reconstructed via di-electron and di-muon decay channels. The results from both channels are consistent with each other and are combined. The background is less than 3% of our selected sample. Within the statistical and systematic uncertainties, the per-event Z boson yield integrated over rapidity |yZ| < 2.5 is proportional to the number of binary collisions estimated by the Glauber model. The elliptic flow coefficient of the azimuthal distribution of the Z boson with respect to the event plane is consistent with zero.ATLAS-CONF-2012-052oai:cds.cern.ch:14519302012-05-28
spellingShingle Detectors and Experimental Techniques
The ATLAS collaboration
Measurement of the Z boson Production in Lead-Lead Collisions at sqrt(s_NN)=2.76 TeV with the ATLAS Detector
title Measurement of the Z boson Production in Lead-Lead Collisions at sqrt(s_NN)=2.76 TeV with the ATLAS Detector
title_full Measurement of the Z boson Production in Lead-Lead Collisions at sqrt(s_NN)=2.76 TeV with the ATLAS Detector
title_fullStr Measurement of the Z boson Production in Lead-Lead Collisions at sqrt(s_NN)=2.76 TeV with the ATLAS Detector
title_full_unstemmed Measurement of the Z boson Production in Lead-Lead Collisions at sqrt(s_NN)=2.76 TeV with the ATLAS Detector
title_short Measurement of the Z boson Production in Lead-Lead Collisions at sqrt(s_NN)=2.76 TeV with the ATLAS Detector
title_sort measurement of the z boson production in lead-lead collisions at sqrt(s_nn)=2.76 tev with the atlas detector
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/1451930
work_keys_str_mv AT theatlascollaboration measurementofthezbosonproductioninleadleadcollisionsatsqrtsnn276tevwiththeatlasdetector

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