MLIT JINR takes part in the development of software for track reconstruction within the MPD experiment On 15–17 April, 2025, the XV Collaboration Meeting of the MPD experiment was held in a mixed format at the Veksler and Baldin Laboratory of High Energy Physics. Within the experiment’s collaboration, the Meshcheryakov Laboratory of Information Technologies is working on developing algorithms and the MpdRoot software shell for offline event reconstruction in the MPD (Multi-Purpose Detector) setup of the NICA megascience project. MLIT Lead Researcher Slavomir Hnatic, who is responsible for this direction from the Laboratory, presented the status of work on the implementation of the modern ACTS (A Common Tracking Software) framework for MPD. Slavomir Hnatic’s talk focused on the integration and implementation of ACTS for particle track reconstruction in the TPC detector of the MPD experiment. The results of reconstructing modeled heavy nucleus collisions on the JINR “Govorun” supercomputer were considered. They indicate that the technologies of the ACTS software package of the combinatorial Kalman filter, built into the MpdRoot software package, are more effective than other existing solutions in searching for particle tracks and minimizing the number of false tracks. The technical issues of completing the integration of the ACTS software package into the MpdRoot shell to employ it for real data reconstruction after the start of the experiment were discussed. At the XV MPD Collaboration Meeting, an updated plan for the implementation of the multi-purpose detector project was presented. The major topics for discussion were the status of the NICA accelerator complex, the readiness of the key MPD systems, and the prospective physics research program.
