Search for anomalous electroweak production of vector boson pairs in association with two jets in proton-proton collisions at 13 TeV

The CMS collaboration
Phys.Lett. B798 (2019) 134985, 2019.

Abstract (data abstract)
A search for anomalous electroweak production of WW, WZ, and ZZ boson pairs in association with two jets in proton-proton collisions at $\sqrt{s}=13$ TeV at the LHC is reported. The data sample corresponds to an integrated luminosity of $35.9$ fb$^{-1}$ collected with the CMS detector. Events are selected by requiring two jets with large rapidity separation and invariant mass, one or two leptons (electrons or muons), and a W or Z boson decaying hadronically. No excess of events with respect to the standard model background predictions is observed and constraints on the structure of quartic vector boson interactions in the framework of dimension-8 effective field theory operators are reported. Stringent limits on parameters of the effective field theory operators are obtained. The observed $95\%$ confidence level limits for the S0, M0, and T0 operators are $-2.7<f_{\text{S0}}/ \Lambda^{4}<2.7$, $-1.0<f_{\text{M0}}/ \Lambda^{4}<1.0$, and $-0.17<f_{\text{T0}}/ \Lambda^{4}<0.16$, in units of TeV{}$^{-4}$. Constraints are also reported on the product of the cross section and branching fraction for vector boson fusion production of charged Higgs bosons as a function of mass from 600 to 2000 GeV. The results are interpreted in the context of the Georgi--Machacek model.

  • Table 2

    Data from Table 2

    10.17182/hepdata.89398.v1/t1

    Expected yields from various background processes in $\mathrm{WV}$ and $\mathrm{ZV}$ final states. The combination of the statistical and systematic uncertainties...

  • Table 3

    Data from Table 3

    10.17182/hepdata.89398.v1/t2

    Observed and expected lower and upper 95\% CL limits on the parameters of the quartic operators S0, S1, M0, M1,...

  • Table limits 5 upper left

    Data from Figure 5 upper left

    10.17182/hepdata.89398.v1/t3

    Expected and observed exclusion limits at the 95\% CL as a function of $m(\mathrm{H}^{\pm})$ for $\sigma_\mathrm{VBF}(\mathrm{H}^{\pm}) \, \mathcal{B}(\mathrm{H}^{\pm} \rightarrow \mathrm{W}^{\pm}\mathrm{Z})$...

  • Table limits 5 upper right

    Data from Figure 5 upper right

    10.17182/hepdata.89398.v1/t4

    Expected and observed exclusion limits at the 95\% CL as a function of $m(\mathrm{H}^{\pm})$ for $\sigma_\mathrm{VBF}(\mathrm{H}^{\pm}) \, \mathcal{B}(\mathrm{H}^{\pm} \rightarrow \mathrm{W}^{\pm}\mathrm{Z})$...

  • Table limits 5 lower left

    Data from Figure 5 lower left

    10.17182/hepdata.89398.v1/t5

    Expected and observed exclusion limits at the 95\% CL as a function of $m(\mathrm{H}^{\pm\pm})$ for $\sigma_\mathrm{VBF}(\mathrm{H}^{\pm\pm}) \, \mathcal{B}(\mathrm{H}^{\pm\pm} \rightarrow \mathrm{W}^{\pm}\mathrm{W}^{\pm})$...

  • Table limits 5 lower right

    Data from Figure 5 lower right

    10.17182/hepdata.89398.v1/t6

    Expected and observed exclusion limits at the 95\% CL for $s_{\mathrm{H}}$ in the Georgi-Machacek model.

  • Figure 4 left

    Data from Figure 4 left

    10.17182/hepdata.89398.v1/t7

    $\mathrm{m_{\mathrm{WV}}}$ distribution in the $\mathrm{WV}$ channel. The predicted yields are shown with their best-fit normalizations from the background-only fit.

  • Figure 4 right

    Data from Figure 4 right

    10.17182/hepdata.89398.v1/t8

    $\mathrm{m_{\mathrm{ZV}}}$ distribution in the $\mathrm{ZV}$ channel. The predicted yields are shown with their best-fit normalizations from the background-only fit.

  • Covariance Matrix left

    Supplementary material

    10.17182/hepdata.89398.v1/t9

    Covariance matrix for all the $\mathrm{m_{\mathrm{WV}}}$ bins used in the $\mathrm{WV}$ channel. The mass distributions are binned as follows: $\mathrm{m_{\mathrm{WV}}}$...

  • Covariance Matrix right

    Supplementary material

    10.17182/hepdata.89398.v1/t10

    Covariance matrix for all the $\mathrm{m_{\mathrm{ZV}}}$ bins used in the $\mathrm{ZV}$ channel. The mass distributions are binned as follows: $\mathrm{m_{\mathrm{ZV}}}$...

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