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Precision measurement of forward Z boson production in proton-proton collisions at √s = 13 TeV

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Peer-reviewed

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Article

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Authors

Aaij, R 
Abdelmotteleb, ASW 
Abellán Beteta, C 
Abudinén, F 
Ackernley, T 

Abstract

A precision measurement of the Z boson production cross-section at s=13 TeV in the forward region is presented, using pp collision data collected by the LHCb detector, corresponding to an integrated luminosity of 5.1 fb−1. The production cross-section is measured using Zμ+μ events within the fiducial region defined as pseudorapidity 2.0<η<4.5 and transverse momentum pT>20 GeV/c for both muons and dimuon invariant mass 60<Mμμ<120 GeV/c2. The integrated cross-section is determined to be \begin{equation*} \sigma(Z\rightarrow\mu^+\mu^-) = 196.4 \pm 0.2 \pm 1.6 \pm 3.9~pb, \end{equation*} where the first uncertainty is statistical, the second is systematic, and the third is due to the luminosity determination. The measured results are in agreement with theoretical predictions within uncertainties.

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Keywords

Electroweak Interaction, Forward Physics, Hadron-Hadron Scattering, Particle and Resonance Production

Journal Title

Journal of High Energy Physics

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Journal ISSN

1029-8479
1029-8479

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Publisher

Springer Science and Business Media LLC