New features of MadAnalysis 5 for analysis design and reinterpretation

Abstract. We present MadAnalysis 5, an analysis package dedicated to phenomenological studies of simulated collisions occurring in high-energy physics experiments. Within this framework, users are invited, through a user-friendly Python interpreter, to implement physics analyses in a very simple manner. A C++ code is then automatically generated, compiled and executed. Very recently, the expert mode of the program has been extended so that analyses with multiple signal/control regions can be handled. Additional observables have also been included, and an interface to several fast detector simulation packages has been developed, one of them being a tune of the Delphes 3 software. As a result, a recasting of existing ATLAS and CMS analyses can be achieved straightforwardly. 1. MadAnalysis 5 in a nutshell While both LHC experiments are currently pushing limits on particles beyond the Standard Model to higher and higher scales, tremendous progress has been made in the development of Monte Carlo event generators and satellite programs, in particular with respect to precision predictions, new physics implementations and event analysis. The public MadAnalysis 5 package [1, 2] addresses this last aspect and provides a framework for analyzing events generate