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Report number arXiv:1210.6486 ; CERN-PH-EP-2012-223 ; CERN-PH-EP-2012-223
Title Measurement of Z boson Production in Pb+Pb Collisions at sNN=2.76 TeV with the ATLAS Detector
Related titleMeasurement of Z boson Production in Pb+Pb Collisions at sqrt(s_NN)=2.76 TeV with the ATLAS Detector
Author(s) ATLAS Collaboration  Show all 2905 authors
Publication 2013-01-08
Imprint 25 Oct 2012
Number of pages 18
Note Comments: 5 pages plus author list (19 pages total), 5 figures, submitted to Phys. Rev. Letters
5 pages plus author list (19 pages total), 5 figures, submitted to Phys. Rev. Letters
In: Phys. Rev. Lett. 110 (2013) 022301
DOI 10.1103/PhysRevLett.110.022301
Subject category Nuclear Physics - Experiment ; Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; ATLAS
Free keywords relativistic heavy ion physics ; quark gluon plasma ; lepton production ; particle and resonance production ; experimental results
Abstract The ATLAS experiment has observed 1995 Z boson candidates in data corresponding to 0.15 inverse nb of integrated luminosity obtained in the 2011 LHC Pb+Pb run at sNN=2.76 TeV. The Z bosons are reconstructed via di-electron and di-muon decay channels, with a background contamination of less than 3%. Results from the two channels are consistent and are combined. Within the statistical and systematic uncertainties, the per-event Z boson yield is proportional to the number of binary collisions estimated by the Glauber model. The elliptic anisotropy of the azimuthal distribution of the Z boson with respect to the event plane is found to be consistent with zero.
Copyright/License preprint: © 2012-2024 CERN (License: CC-BY-3.0)
publication: © 2013-2024 CERN (License: CC-BY-3.0)



Corresponding record in: Inspire
Email contact: tony.doyle@glasgow.ac.uk


 Record created 2012-10-25, last modified 2024-04-19


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