Z boson production in p+Pb collisions at s NN =5.02 TeV measured with the ATLAS detector

ATLAS Collaboration

Research output: Contribution to journalArticlepeer-review

Abstract

The ATLAS Collaboration measures the inclusive production of Z bosons via their decays into electron and muon pairs in p+Pb collisions at sNN=5.02TeV 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 |yZ∗|<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.

Original languageEnglish
Article number044915
JournalPhysical Review C - Nuclear Physics
Volume92
Issue number4
DOIs
StatePublished - 30 Oct 2015

Funding

FundersFunder number
Not addedST/N000420/1, ST/L001179/1
National Science Foundation1119200, 1305037, 1506173
National Science Foundation
Seventh Framework Programme246806
Seventh Framework Programme
Science and Technology Facilities CouncilPP/E000347/1, ST/L001195/1, ST/J00474X/1, ST/M004821/1, ST/M002306/1, ST/J004928/1, ST/K001361/1, ST/L003414/1, GRIDPP, ST/K001310/1, ST/L00352X/1, ST/L001144/1, ST/L003112/1, ST/J005525/1, ST/M001504/1, ST/K001248/1, ST/L003325/1, ST/M000761/1, ST/I000178/1, ST/G50228X/1, ST/H001093/2, ST/M001431/1, ST/K001418/1, ST/H001093/1, ST/K001302/1, ST/N000463/1, ST/K001329/1, ST/I005803/1, ST/J004944/1, ST/M001407/1, ST/I006080/1, ST/L006480/1, ST/I000186/1, ST/M006980/1, ST/G502320/1, ST/M001733/1, PP/D002915/1, ST/H00100X/1, ST/L000970/1, ST/K00073X/1, ST/H00100X/2, ST/K000705/1, ST/L003511/1, ST/L000326/1, PP/E003087/1, ST/N000307/1, PP/E000355/1, ST/K00140X/1, ST/M001474/1, ST/I00372X/1, PP/E002846/1, ST/K003658/1, ST/J005487/1, ST/I006056/1, ST/M003213/1, PP/E000444/1, ST/K00137X/1, ST/N000277/1, ST/J005576/1
Science and Technology Facilities Council
Schweizerischer Nationalfonds zur F&#x00F6;rderung der Wissenschaftlichen Forschung156083, 149246
Schweizerischer Nationalfonds zur F&#x00F6;rderung der Wissenschaftlichen Forschung

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