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

The CMS collaboration
CMS-SMP-21-011, 2022.

Abstract (data abstract)
A measurement is presented for the electroweak production of a W boson, a photon(γ), and two jets (j) in proton-proton collisions. The leptonic decay of the W boson is selected by requiring one identified electron or muon and large missing transverse momentum. The two jets are required to have large invariant dijet mass and large separation in pseudorapidity. The measurement is performed with the data collected by the CMS detector at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of $138 fb^{−1}$. The cross section for the electroweak Wγjj production in a fiducial region is $23.5^{+4.9}_{−4.7} fb$, while the total cross section for Wγjj production in the same fiducial region is 113 ± 13 fb. Differential cross sections are also measured with the distributions unfolded to the parton level. Constraints are placed on anomalous quartic gauge couplings (aQGC) in terms of dimension-8 effective field theory operators and found to be the most stringent limits to date on the aQGC parameters $f_{M,2–5}/Λ^4$ and $f_{T,6–7}/Λ^4$. All results are in agreement with the standard model expectations.

  • figure 3 left

    Data from Figure 3 left

    10.17182/hepdata.135702.v1/t1

    The 2D distributions used in the fit for the total EW W$\gamma$ cross section measurement. The hatched bands represent the...

  • figure 3 right

    Data from Figure 3 right

    10.17182/hepdata.135702.v1/t2

    The 2D distributions used in the fit for the total EW W$\gamma$ cross section measurement. The hatched bands represent the...

  • figure 4 up-left

    Data from Figure 4 up left

    10.17182/hepdata.135702.v1/t3

    Differential cross sections for the EW W$\gamma$jj production. Given that the ranges of some variables extend to infinity, the last...

  • figure 4 up-right

    Data from Figure 4 up right

    10.17182/hepdata.135702.v1/t4

    Differential cross sections for the EW W$\gamma$jj production. Given that the ranges of some variables extend to infinity, the last...

  • figure 4 middle-left

    Data from Figure 4 middle left

    10.17182/hepdata.135702.v1/t5

    Differential cross sections for the EW W$\gamma$jj production. Given that the ranges of some variables extend to infinity, the last...

  • figure 4 middle-right

    Data from Figure 4 middle right

    10.17182/hepdata.135702.v1/t6

    Differential cross sections for the EW W$\gamma$jj production. Given that the ranges of some variables extend to infinity, the last...

  • figure 4 down-left

    Data from Figure 4 down left

    10.17182/hepdata.135702.v1/t7

    Differential cross sections for the EW W$\gamma$jj production. Given that the ranges of some variables extend to infinity, the last...

  • figure 4 down-right

    Data from Figure 4 down right

    10.17182/hepdata.135702.v1/t8

    Differential cross sections for the EW W$\gamma$jj production. Given that the ranges of some variables extend to infinity, the last...

  • figure 5 up-left

    Data from Figure 5 up left

    10.17182/hepdata.135702.v1/t9

    Differential cross sections for the EW + QCD W$\gamma$jj production. Given that the ranges of some variables extend to infinity,...

  • figure 5 up-right

    Data from Figure 5 up right

    10.17182/hepdata.135702.v1/t10

    Differential cross sections for the EW +QCD W$\gamma$jj production. Given that the ranges of some variables extend to infinity, the...

  • figure 5 middle-left

    Data from Figure 5 middle left

    10.17182/hepdata.135702.v1/t11

    Differential cross sections for the EW + QCD W$\gamma$jj production. Given that the ranges of some variables extend to infinity,...

  • figure 5 middle-right

    Data from Figure 5 middle right

    10.17182/hepdata.135702.v1/t12

    Differential cross sections for the EW + QCD W$\gamma$jj production. Given that the ranges of some variables extend to infinity,...

  • figure 5 down-left

    Data from Figure 5 down left

    10.17182/hepdata.135702.v1/t13

    Differential cross sections for the EW + QCD W$\gamma$jj production. Given that the ranges of some variables extend to infinity,...

  • figure 5 down-right

    Data from Figure 5 down right

    10.17182/hepdata.135702.v1/t14

    Differential cross sections for the EW + QCD W$\gamma$jj production. Given that the ranges of some variables extend to infinity,...

  • figure 6 left

    Data from Figure 6 left

    10.17182/hepdata.135702.v1/t15

    The $m_{W\gamma}$ distribution for muon events (electron events are also used and the muon events are shown here as an...

  • aqgc limit

    Data from AQGC limit

    10.17182/hepdata.135702.v1/t16

    Exclusion limits at the 95% CL for each aQGC coefficient, derived from the mW$\gamma$ distribution, assuming all other coefficients are...

  • Result summary

    Example location

    10.17182/hepdata.135702.v1/t17

    Results summary.

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