https://doi.org/10.1051/epjconf/202429506015
Medusa, a multithread 4-body decay fitting and simulation software
1 Università di Pisa
2 INFN Sezione di Pisa
3 Institute for Astroparticle Physics – Karlsruhe Institute of Technology (IAP/KIT)
4 INFN Sezione di Cagliari
* e-mail: alessandro.ricci@df.unipi.it
Published online: 6 May 2024
We present a new C++14 compliant application to perform physics data analyses of generic 4-body decays in massively parallel platforms. Medusa is highly based on Hydra, a header-only library which hides most of the complexities of writing parallel code for different architectures. Medusa has been tested through the measurement of the CP-violating phase ϕsin b-hadron decays exploiting the data collected by the LHCb experiment. Medusa executes the optimization of the full model, running over 500000 events, until 330 times faster than a non-parallelized program. Medusa is freely available on GitHub under GPL v.3.0 license.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
