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Z Boson Production in p + Pb Collisions at √s[subscript NN] = 5.02 TeV Measured with the ATLAS Detector

Author(s)
Taylor, Frank E.
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Abstract
The ATLAS Collaboration measures the inclusive production of Z bosons via their decays into electron and muon pairs in p + Pb collisions at √s[subscript NN] = 5.02 TeV at the Large Hadron Collider. The measurements are made using data corresponding to integrated luminosities of 29.4 and 28.1 nb[superscript −1] for Z → ee and Z → μμ, respectively. The results from the two channels are consistent and combined to obtain a cross section times the Z → ℓℓ branching ratio, integrated over the rapidity region |y[∗ over Z]| < 3.5, of 139.8 ± 4.8(statistical) ± 6.2(systematic) ± 3.8 (luminosity) nb. Differential cross sections are presented as functions of the Z boson rapidity and transverse momentum and compared with models based on parton distributions both with and without nuclear corrections. The centrality dependence of Z boson production in p + Pb collisions is measured and analyzed within the framework of a standard Glauber model and the model's extension for fluctuations of the underlying nucleon-nucleon scattering cross section.
Date issued
2015-10
URI
http://hdl.handle.net/1721.1/101020
Department
Massachusetts Institute of Technology. Department of Physics
Journal
Physical Review C
Citation
Aad, G., B. Abbott, J. Abdallah, O. Abdinov, R. Aben, M. Abolins, O. S. AbouZeid, et al. “Z Boson Production in p + Pb Collisions at √s[subscript NN] = 5.02 TeV Measured with the ATLAS Detector.” Physical Review C 92, no. 4 (October 30, 2015). © 2015 CERN, for the ATLAS Collaboration
Version: Final published version
ISSN
0556-2813
1089-490X

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