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Measurements of ${\mathrm{p}} {\mathrm{p}} \rightarrow {\mathrm{Z}} {\mathrm{Z}} $ production cross sections and constraints on anomalous triple gauge couplings at $\sqrt{s} = 13\,\text {TeV} $

The CMS collaboration
Eur.Phys.J.C 81 (2021) 200, 2021.

Abstract (data abstract)
The production of Z boson pairs in proton-proton (pp) collisions, pp →(Z/γ∗)(Z/γ∗) → 2l2l', where l, l' = e or µ, is studied at a center-of-mass energy of 13 TeV with the CMS detector at the CERN LHC. The data sample corresponds to an integrated luminosity of $137~\mathrm{fb}^{-1}$, collected during 2016–2018. The ZZ production cross section, $\sigma_{tot}$(pp → ZZ) = 17.4±0.3 (stat)±0.5 (syst)±0.4 (theo)±0.3 (lumi) pb, measured for events with two pairs of opposite-sign, same-flavor leptons produced in the mass region 60 < $m_{l^+l^−}$ < 120 GeV is consistent with standard model predictions. Differential cross sections are also measured and agree with theoretical predictions. The invariant mass distribution of the four-lepton system is used to set limits on anomalous ZZZ and ZZγ couplings.

  • Figure 1

    Data from Figure 4 (left), located on page 12.

    10.17182/hepdata.101183.v1/t1

    Differential cross sections normalized to the fiducial cross section for the combined 4e, 2e2µ, and 4µ decay channels as a...

  • Figure 2

    Data from Figure 4 (right), located on page 12.

    10.17182/hepdata.101183.v1/t2

    Differential cross sections normalized to the fiducial cross section for the combined 4e, 2e2µ, and 4µ decay channels as a...

  • Figure 3

    Data from Figure 5 (left), located on page 13.

    10.17182/hepdata.101183.v1/t3

    Differential cross sections normalized to the fiducial cross section for the combined 4e, 2e2µ, and 4µ decay channels as a...

  • Figure 4

    Data from Figure 5 (right), located on page 13.

    10.17182/hepdata.101183.v1/t4

    Differential cross sections normalized to the fiducial cross section for the combined 4e, 2e2µ, and 4µ decay channels as a...

  • Figure 5

    Data from Figure 6 (left), located on page 14.

    10.17182/hepdata.101183.v1/t5

    Differential cross sections normalized to the fiducial cross section for the combined 4e, 2e2µ, and 4µ decay channels as a...

  • Figure 6

    Data from Figure 6 (right), located on page 14.

    10.17182/hepdata.101183.v1/t6

    Differential cross sections normalized to the fiducial cross section for the combined 4e, 2e2µ, and 4µ decay channels as a...

  • Table 1

    Data from Table 3, located on page 8.

    10.17182/hepdata.101183.v1/t7

    Measured fiducial cross section for each data sample and combined. The first uncertainty is statistical, the second is experimental systematic,...

  • Table 2

    Data from Table 4, located on page 9.

    10.17182/hepdata.101183.v1/t8

    Measured total σ(pp → ZZ) cross section for each data sample and combined. The first uncertainty is statistical, the second...

  • Table 3

    Data from Table 5(top), located on page 17.

    10.17182/hepdata.101183.v1/t9

    Expected and observed one-dimensional 95% CL limits on aTGC parameters. The corresponding constrains on EFT parameters are estimated using the...

  • Table 4

    Data from Table 5(bottom), located on page 17.

    10.17182/hepdata.101183.v1/t10

    Expected and observed one-dimensional 95% CL limits on aTGC parameters. The corresponding constrains on EFT parameters are estimated using the...

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