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Search for anomalous triple gauge couplings in WW and WZ production in lepton + jet events in proton-proton collisions at $\sqrt{s} =$ 13 TeV

The CMS collaboration
No Journal Information, 2019

Abstract
A search is presented for three additional operators that would lead to anomalousWW$\gamma$ or WWZ couplings with respect to those in the standard model. They are constrained by studying events with two vector bosons; a W boson decaying to e$\nu$ or $\mu\nu$, and a W or Z boson decaying hadronically, reconstructed as a single, massive, large-radius jet. The search uses a data set of proton-proton collisions at a centre-of-mass energy of 13 TeV, recorded by the CMS experiment at the CERN LHC in 2016, and corresponding to an integrated luminosity of 35.9 fb$^{-1}$. Using the reconstructed diboson invariant mass, 95% confidence intervals are obtained for the anomalous coupling parameters of $-$1.58 $< c_\mathrm{WWW}/\Lambda^2 <$ 1.59 TeV$^{-2}$, $-$2.00 $< c_\mathrm{W}/\Lambda^2 <$ 2.65 TeV$^{-2}$, and $-$8.78$ < c_\mathrm{B}/\Lambda^2 <$ 8.54 TeV$^{-2}$, in agreement with standard model expectations of zero for each parameter. These are the strictest bounds on these parameters to date.

  • Table 1

    Data from Table 4

    10.17182/hepdata.91970.v1/t1

    aTGC limits on EFT parameters in lepton + jet events in WW and WZ production

  • Table 2

    Data from Table 4

    10.17182/hepdata.91970.v1/t2

    aTGC limits in LEP parametrization in lepton + jet events in WW and WZ production

  • Figure 1

    Data from Figure 5 (left)

    10.17182/hepdata.91970.v1/t3

    2-dimensional aTGC limits in lepton + jet events in WW and WZ production

  • Figure 2

    Data from Figure 5 (middle)

    10.17182/hepdata.91970.v1/t4

    2-dimensional aTGC limits in lepton + jet events in WW and WZ production

  • Figure 3

    Data from Figure 5 (right)

    10.17182/hepdata.91970.v1/t5

    2-dimensional aTGC limits in lepton + jet events in WW and WZ production

  • Figure 4

    Data from Figure 6 (left)

    10.17182/hepdata.91970.v1/t6

    2-dimensional aTGC limits in LEP paramatrization in lepton + jet events in WW and WZ production

  • Figure 5

    Data from Figure 6 (middle)

    10.17182/hepdata.91970.v1/t7

    2-dimensional aTGC limits in LEP paramatrization in lepton + jet events in WW and WZ production

  • Figure 6

    Data from Figure 6 (right)

    10.17182/hepdata.91970.v1/t8

    2-dimensional aTGC limits in LEP paramatrization in lepton + jet events in WW and WZ production

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