  Searches for supersymmetry (SUSY) are presented based on the electroweak pair
production of neutralinos and charginos, leading to decay channels with Higgs,
Z, and W bosons and undetected lightest SUSY particles (LSPs). The data sample
corresponds to an integrated luminosity of about 19.5 inverse femtobarns of
proton-proton collisions at a center-of-mass energy of 8 TeV collected in 2012
with the CMS detector at the LHC. The main emphasis is neutralino pair
production in which each neutralino decays either to a Higgs boson (h) and an
LSP or to a Z boson and an LSP, leading to hh, hZ, and ZZ states with missing
transverse energy (ET(miss)). A second aspect is chargino-neutralino pair
production, leading to hW states with ET(miss). The decays of a Higgs boson to
a bottom-quark pair, to a photon pair, and to final states with leptons are
considered in conjunction with hadronic and leptonic decay modes of the Z and W
bosons. No evidence is found for supersymmetric particles, and 95% confidence
level upper limits are evaluated for the respective pair production cross
sections and for neutralino and chargino mass values.

High Energy Physics - Experiment