Z boson production in Pb plus Pb collisions at root S-NN=5.02 TeV measured by the ATLAS experiment

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F20%3A73601016" target="_blank" >RIV/61989592:15310/20:73601016 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21220/20:00346793 RIV/68407700:21340/20:00346793 RIV/68407700:21670/20:00346793 RIV/00216208:11320/20:10423474
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0370269320300666" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0370269320300666</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.physletb.2020.135262" target="_blank" >10.1016/j.physletb.2020.135262</a>

Result language
angličtina
Original language name
Z boson production in Pb plus Pb collisions at root S-NN=5.02 TeV measured by the ATLAS experiment
Original language description
The production yield of Z bosons is measured in the electron and muon decay channels in Pb+Pb collisions at /S-NN = 5.02 TeV with the ATLAS detector. Data from the 2015 LHC run corresponding to an integrated luminosity of 0.49 nb(-1) are used for the analysis. The Z boson yield, normalised by the total number of minimum-bias events and the mean nuclear thickness function, is measured as a function of dilepton rapidity and event centrality. The measurements in Pb+Pb collisions are compared with similar measurements made in proton-proton collisions at the same centre-of-mass energy. The nuclear modification factor is found to be consistent with unity for all centrality intervals. The results are compared with theoretical predictions obtained at next-to-leading order using nucleon and nuclear parton distribution functions. The normalised Z boson yields in Pb+Pb collisions lie 1-3a above the predictions. The nuclear modification factor measured as a function of rapidity agrees with unity and is consistent with a next-to-leading-order QCD calculation including the isospin effect.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10303 - Particles and field physics

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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