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Measurements of the electroweak diboson production cross sections in proton-proton collisions at $\sqrt{s} =$ 5.02 TeV using leptonic decays

The CMS collaboration
CMS-SMP-20-012, 2021.

Abstract (data abstract)
The first measurements of diboson production cross sections at a center-of-mass energy of $5.02~\mathrm{TeV}$ are reported. They are based on proton-proton collision data collected with the CMS detector at the LHC, corresponding to an integrated luminosity of $302~\mathrm{pb}^{-1}$. Events with two, three, or four charged light leptons (electrons or muons) in the final state are analyzed. The $\mathrm{WW}$, $\mathrm{WZ}$, and $\mathrm{ZZ}$ total cross sections are measured as $\sigma_{\mathrm{WW}}=37.0 \text{ }^{+5.5}_{-5.2} (\text{stat}) \text{ }^{+2.7}_{-2.6} (\text{syst})~\mathrm{pb}$, $\sigma_{\mathrm{WZ}}=6.4 \text{ }^{+2.5}_{-2.1} (\text{stat}) \text{ }^{+0.5}_{-0.3} (\text{syst})~\mathrm{pb}$, and $\sigma_{\mathrm{ZZ}}=5.3 \text{ }^{+2.5}_{-2.1} (\text{stat}) \text{ }^{+0.5}_{-0.4} (\text{syst})~\mathrm{pb}$. All measurements are in good agreement with theoretical calculations at combined next-to-next-to-leading order quantum chromodynamics and next-to-leading order electroweak accuracy.

  • Table 1

    Table 1

    10.17182/hepdata.107754.v1/t1

    Expected event yields in the WW SR and observed number of events. The uncertainties correspond to the statistical and systematic...

  • Table 2

    Table 2

    10.17182/hepdata.107754.v1/t2

    Expected event yields for the signal and total background in the WZ and ZZ SRs, and observed number of events....

  • Figure 1 Left

    Data from Figure 1 left, located on page 6.

    10.17182/hepdata.107754.v1/t3

    Distribution of the dilepton pT in the WW signal region. Events from DY, conversions, and diboson processes are grouped into...

  • Figure 1 Right

    Data from Figure 1 right, located on page 6.

    10.17182/hepdata.107754.v1/t4

    Distribution of the W boson transverse mass in the WZ 3l signal region. Events from conversions, and DY processes are...

  • Figure 2

    Figure 2

    10.17182/hepdata.107754.v1/t5

    Results obtained in this analysis and other diboson production cross section measurements at different center-of-mass energies for the CMS, ATLAS,...

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