Special Article – Tools for Experiment and Theory
Simplified fast detector simulation in MadAnalysis 5
School of Physics & Astronomy, University of Glasgow, Glasgow, UK
2 Concordia University, 7141 Sherbrooke St. West, H4B 1R6, Montréal, QC, Canada
3 Laboratoire de Physique Théorique et Hautes Energies (LPTHE), UMR 7589, Sorbonne Université et CNRS, 4 place Jussieu, 75252, Paris Cedex 05, France
4 Institut Universitaire de France, 103 boulevard Saint-Michel, 75005, Paris, France
Accepted: 15 March 2021
Published online: 18 April 2021
We introduce a new simplified fast detector simulator in the MadAnalysis 5 platform. The Python-like interpreter of the programme has been augmented by new commands allowing for a detector parametrisation through smearing and efficiency functions. On run time, an associated C++ code is automatically generated and executed to produce reconstructed-level events. In addition, we have extended the MadAnalysis 5 recasting infrastructure to support our detector emulator, and we provide predefined LHC detector configurations. We have compared predictions obtained with our approach to those resulting from the usage of the Delphes 3 software, both for Standard Model processes and a few new physics signals. Results generally agree to a level of about 10% or better, the largest differences in the predictions stemming from the different strategies that are followed to model specific detector effects. Equipped with these new functionalities, MadAnalysis 5 now offers a new user-friendly way to include detector effects when analysing collider events, the simulation of the detector and the analysis being both handled either through a set of intuitive Python commands or directly within the C++ core of the platform.
© The Author(s) 2021
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