Z Boson Production in p + Pb Collisions at √s̅(N̅N̅) = 5.02 TeV Measured with the ATLAS Detector

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Z Boson Production in p + Pb Collisions at √s̅(N̅N̅) = 5.02 TeV Measured with the ATLAS Detector

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Title: Z Boson Production in p + Pb Collisions at √s̅(N̅N̅) = 5.02 TeV Measured with the ATLAS Detector
Author(s):
Aad, G.;
Abbott, B.;
Abdallah, J.;
Abdinov, O.;
Aben, R.;
Abolins, M.;
AbouZeid, O. S.;
Izen, Joseph M. (UT Dallas);
Leyton, Michael (UT Dallas);
Meirose, Bernhard (UT Dallas);
Namasivayam, Harisankar (UT Dallas);
Reeves, Kendall (UT Dallas);
ATLAS Collaboration
Item Type: Article
Keywords: Z bosons
Proton-lead interactions
Uncertainty
Electrons
Abstract: The ATLAS Collaboration measures the inclusive production of Z bosons via their decays into electron and muon pairs in p + Pb collisions at √s̅(N̅N̅) = 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⁻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 |γ(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.
Publisher: American Physical Society
ISSN: 0556-2813
Persistent Link: http://hdl.handle.net/10735.1/4656
http://dx.doi.org/10.1038/srep10050
Bibliographic Citation: Aad, G., B. Abbott, J. Abdallah, O. Abdinov, et al. 2015. "Z boson production in p plus Pb collisions at root S-NN=5.02 TeV measured with the ATLAS detector." Physical Review C 92(4), doi:10.1103/PhysRevC.92.044915
Terms of Use: CC BY 3.0 (Attribution) License
©2015 CERN, for the ATLAS Collaboration
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