Higgs assisted razor search for Higgsinos at a 100 TeV pp collider

100 TeV proton-proton collider will be an extremely effective way to probe the electroweak sector of the minimal supersymmetric standard model (MSSM). In this paper, we describe a search strategy for discovering pair-produced Higgsino-like next-to-lightest supersymmetric particles (NLSPs) at a 100 TeV hadron collider that decay to Bino-like lightest supersymmetric particles (LSPs) via intermediate Z and SM Higgs bosons that in turn decay to a pair of leptons and a pair of b -quarks respectively: χ_2^0χ_3^0 → (Zχ_1^0)(hχ_1^0) → bb ℓℓ + χ_1^0χ_1^0 In addition, we examine the potential for machine learning techniques to boost the power of our searches. Using this analysis, Higgsinos up to 1.4 TeV can be discovered at the 5 σ level for Binos with mass of about 0.9 TeV using 3000 fb −1 of data. Additionally, Higgsinos up to 1.8 TeV can be excluded at 95