Signal region combination with full and simplified likelihoods in MadAnalysis 5

The statistical combination of disjoint signal regions in reinterpretation studies uses more the data an analysis and gives robust results than single region approach. We present implementation usage MadAnalysis 5 through two methods: interface to Pyhf package making use models JSON-serialised format provided by ATLAS collaboration, a simplified likelihood calculation covariance matrices CMS collaboration. gain physics reach is demonstrated 1.) comparison with official mass limits for 4 analyses from Public Analysis Database which currently available, 2.) case study MSSM scenario both stops sbottoms can be produced have variety decays into charginos neutralinos.