Precision measurement of forward Z boson production in proton-proton collisions at s $$ \sqrt{\mathrm{s}} $$ = 13 TeV
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13130_2022_Article_18675.pdf
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Author(s)
Aaij, R.
Abdelmotteleb, A. S. W.
Abellán Beteta, C.
Abudinén, F.
Ackernley, T.
Adeva, B.
Adinolfi, M.
Afsharnia, H.
Agapopoulou, C.
Aidala, C. A.
Date Issued
July 5, 2022
Publisher
Springer Berlin Heidelberg
Citation
Journal of High Energy Physics. 2022 Jul 05;2022(7):26
Version
Final published version
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 Z → μ+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 σ(Z→μ+μ−)=196.4±0.2±1.6±3.9 pb, 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.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1007/JHEP07(2022)026
