Search for electroweak production of charginos and neutralinos at [formula omitted] in final states containing hadronic decays of WW, WZ, or WH and missing transverse momentum.

This Letter presents a search for direct production of charginos and neutralinos via electroweak interactions. The results are based on data from proton-proton collisions at a center-of-mass energy of 13 TeV collected with the CMS detector at the LHC, corresponding to an integrated luminosity of 137 fb − 1. The search considers final states with large missing transverse momentum and pairs of hadronically decaying bosons W W , W Z , and W H , where H is the Higgs boson. These bosons are identified using novel algorithms. No significant excess of events is observed relative to the expectations from the standard model. Limits at the 95% confidence level are placed on the cross section for production of mass-degenerate wino-like supersymmetric particles χ ˜ 1 ± and χ ˜ 2 0 , and mass-degenerate higgsino-like supersymmetric particles χ ˜ 1 ± , χ ˜ 2 0 , and χ ˜ 3 0. In the limit of a nearly-massless lightest supersymmetric particle χ ˜ 1 0 , wino-like particles with masses up to 870 and 960 GeV are excluded in the cases of χ ˜ 2 0 → Z χ ˜ 1 0 and χ ˜ 2 0 → H χ ˜ 1 0 , respectively, and higgsino-like particles are excluded between 300 and 650 GeV. [ABSTRACT FROM AUTHOR]