Measurement of $ZZ$ production cross-sections in the four-lepton final state in $pp$ collisions at $\sqrt{s}=13.6$ TeV with the ATLAS experiment

Abstract

This paper reports cross-section measurements of $ZZ$ production in $pp$ collisions at $\sqrt{s}=13.6$ TeV at the Large Hadron Collider. The data were collected by the ATLAS detector in 2022, and correspond to an integrated luminosity of 29 fb${}^{-}1$. Events in the $ZZ\to 4\ell$ ($\ell =e$, $\mu$) final states are selected and used to measure the inclusive and differential cross-sections in a fiducial region defined close to the analysis selections. The inclusive cross-section is further extrapolated to the total phase space with a requirement of 66 $<m_Z<$ 116 GeV for both $Z$ bosons, yielding $16.8\pm 1.1$ pb. The results are well described by the Standard Model predictions.

35 pages in total, author list starting page 18, 3 figures, 4 tables, published in Phys. Lett. B. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2022-17/

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• Muon reconstruction and identification efficiency in ATLAS using the full Run 2 $pp$ collision data set at $\sqrt{s}=13$ TeV
• Performance of the ATLAS muon triggers in Run 2
• Measurement of the pp to ZZ production cross section and constraints on anomalous triple gauge couplings in four-lepton final states at sqrt(s) = 8 TeV
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• Production of two Z-bosons in gluon fusion in the heavy top quark approximation
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• Measurements of pp $\to$ ZZ production cross sections and constraints on anomalous triple gauge couplings at $\sqrt{s}=$ 13 TeV
• Measurements of differential cross-sections in four-lepton events in 13 TeV proton-proton collisions with the ATLAS detector
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Cited by in corpus (3)

• Software and computing for Run 3 of the ATLAS experiment at the LHC
• A global analysis of ALP-mediated multiboson production at the LHC
• Threshold resummation for $Z$-boson pair production at NNLO+NNLL