Search for chargino-neutralino production in final states with a Higgs boson and a W boson

A search is presented for electroweak production of supersymmetric particles in final states with one lepton, a Higgs boson decaying to a pair of bottom quarks, and large missing transverse momentum. The search uses data from proton-proton collisions at a center-of-mass energy of $13~\mathrm{TeV}$ collected with the CMS detector at the CERN LHC, corresponding to an integrated luminosity of $137~\mathrm{fb}^{-1}$. The observed data yields are consistent with the estimated standard model backgrounds. Exclusions are set in the context of a simplified supersymmetric model of chargino-neutralino production, with the chargino decaying to a W boson and the lightest supersymmetric particle (LSP) and the neutralino decaying to a Higgs boson plus an LSP. Charginos and neutralinos with masses up to $820~\mathrm{GeV}$ are excluded at $95\%$ confidence level when the LSP mass is small, and LSPs with mass up to $350~\mathrm{GeV}$ are excluded when the mass of the chargino and neutralino is about $700~\mathrm{GeV}$.