Measurement of electroweak production of a W boson in association with two jets in proton-proton collisions at $\sqrt{s}=$ 13 TeV

The CMS collaboration
Eur.Phys.J.C 80 (2020) 43, 2020.

Abstract
A measurement is presented of electroweak (EW) production of a W boson in association with two jets in proton-proton collisions at $\sqrt{s} =$ 13 TeV. The data sample was recorded by the CMS Collaboration at the LHC and corresponds to an integrated luminosity of 35.9 fb$^{-1}$. The measurement is performed for the $\ell\nu$jj final state (with $\ell\nu$ indicating a lepton-neutrino pair, and j representing the quarks produced in the hard interaction) in a kinematic region defined by invariant mass $m_\mathrm{jj}$ $>$ 120 GeV and transverse momenta $p_\mathrm{T j}$ $>$ 25 GeV. The cross section of the process is measured in the electron and muon channels yielding $\sigma_\mathrm{EW}$(Wjj) = 6.23 $\pm$ 0.12 (stat) $\pm$ 0.61 (syst) pb per channel, in agreement with leading-order standard model predictions. The additional hadronic activity of events in a signal-enriched region is studied, and the measurements are compared with predictions. The final state is also used to perform a search for anomalous trilinear gauge couplings. Limits on anomalous trilinear gauge couplings associated with dimension-six operators are given in the framework of an effective field theory. The corresponding 95% confidence level intervals are $-$2.3 $<$ $c_{\mathrm{WWW}}/\Lambda^2$ $<$ 2.5 TeV$^{-2}$, $-$8.8 $<$ $c_{\mathrm{W}}/\Lambda^2$ $<$ 16 TeV$^{-2}$, and $-$45 $<$ $c_{\mathrm{B}}/\Lambda^2$ $<$ 46 TeV$^{-2}$. These results are combined with the CMS EW Zjj analysis, yielding the constraint on the $c_{\mathrm{WWW}}$ coupling: $-$1.8 $<$ $c_{\mathrm{WWW}}/\Lambda^2$ $<$ 2.0 TeV$^{-2}$.

  • Figure 8a

    Contents of Figure 8 (left)

    10.17182/hepdata.86211.v1/t1

    Transformed BDT output distribution after the event preselection, in the muon channel.

  • Figure 8b

    Contents of Figure 8 (right)

    10.17182/hepdata.86211.v1/t2

    Transformed BDT output distribution after the event preselection, in the electron channel.

  • Figure 10a

    Contents of Figure 10 (left)

    10.17182/hepdata.86211.v1/t3

    Muon pT in data and SM backgrounds, and various aTGC scenarios after the event preselection, in the muon channel.

  • Figure 10b

    Contents of Figure 10 (right)

    10.17182/hepdata.86211.v1/t4

    Electron pT in data and SM backgrounds, and various aTGC scenarios after the event preselection, in the electron channel.

  • Measured cross sections

    Contents from Section 10 text

    10.17182/hepdata.86211.v1/t5

    Measured cross section and signal strength, relative to the standard model expectation.

  • Table 3

    Contents of Table 3

    10.17182/hepdata.86211.v1/t6

    One-dimensional limits on the ATGC EFT parameters at 95% CL.

  • Table 4

    Contents of Table 4

    10.17182/hepdata.86211.v1/t7

    One-dimensional limits on the ATGC effective Lagrangian (LEP parametrization) parameters at 95% CL.

  • Table 5

    Contents of Table 5

    10.17182/hepdata.86211.v1/t8

    One-dimensional limits on the ATGC EFT parameters at 95% CL from the combination of EW Wjj and EW Zjj analyses.

  • Table 6

    Contents of Table 6

    10.17182/hepdata.86211.v1/t9

    One-dimensional limits on the ATGC effective Lagrangian (LEP parametrization) parameters at 95% CL from the combination of EW Wjj and...

  • Figure 19a

    Fig 19 (top left)

    10.17182/hepdata.86211.v1/t10

    Hadronic activity veto efficiencies in the signal-enriched BDT> 0.95 region for the muon and electron channels combined, as a function...

  • Figure 19b

    Fig 19 (top right)

    10.17182/hepdata.86211.v1/t11

    Hadronic activity veto efficiencies in the signal-enriched BDT> 0.95 region for the muon and electron channels combined, as a function...

  • Figure 19c

    Fig 19 (bottom left)

    10.17182/hepdata.86211.v1/t12

    Hadronic activity veto efficiencies in the signal-enriched BDT> 0.95 region for the muon and electron channels combined, as a function...

  • Figure 19d

    Fig 19 (bottom right)

    10.17182/hepdata.86211.v1/t13

    Hadronic activity veto efficiencies in the signal-enriched BDT> 0.95 region for the muon and electron channels combined, as a function...

Loading Data...

Ask a Question


Your question will be emailed to those involved with the submission. Please mention the relevant table.


Please log in to HEPData to send a question.