Compact Muon Solenoid
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| CMS-PAS-SMP-22-017 | ||
| Measurement of the inclusive cross section of Z boson production in pp collisions at $ \sqrt{s}= $ 13.6 TeV | ||
| CMS Collaboration | ||
| 21 August 2023 | ||
| Abstract: A measurement of the Z boson production cross section in proton-proton collisions at a center-of-mass energy of 13.6 TeV is presented for Z bosons decaying to a pair of muons. Data collected in 2022 and corresponding to an integrated luminosity of 5.04 fb$ ^{-1} $ with two identified muons in the final state are used to extract a value for the product of the signal cross section and branching fraction. The measurement is done in a fiducial region defined by the kinematical acceptance of the CMS detector and extrapolated to the full phase space resulting in a total cross section for Z boson production in the muonic decay channel with an invariant dimuon mass in the range of 60 to 120GeV of $ \sigma(\mathrm{pp} \rightarrow \mathrm{Z + X})\mathcal{B}(\mathrm{Z} \rightarrow \mu^{+}\mu^{-}) = $ ( 2.010 $ \pm $ 0.001 (stat) $\pm$ 0.018 (syst) $\pm$ 0.046 (lumi) $\pm$ 0.007 (theo) ) nb. The fiducial as well as the extrapolated total result are both dominated by systematic uncertainties and are in agreement with theoretical predictions, calculated at next-to-next-to-leading order accuracy in quantum chromodynamics and recent parton distribution functions. | ||
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Links:
CDS record (PDF) ;
CADI line (restricted) ;
These preliminary results are superseded in this paper, Submitted to JHEP. The superseded preliminary plots can be found here. |
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Compact Muon Solenoid LHC, CERN |
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