Performance of the LHCb muon detector in Run 3
Abstract
In Run 3 of the LHC, the instantaneous luminosity at the LHCb interaction point has been increased by a factor of five, from to . Several hardware interventions, including a complete overhaul of the readout electronics, have been carried out on the muon detector. The muon identification algorithms in the software trigger were improved with the aim of ensuring Run 2 performance under a higher particle rate. The operation and calibration of the upgraded muon detector are presented. The muon detection efficiency and muon identification performance are evaluated on data calibration samples collected during the year 2024. A muon identification efficiency above 90\% with sub-percent hadron misidentification probability is achieved by exploiting the pattern of hits in the muon detector.
Keywords
Cite
@article{arxiv.2604.21075,
title = {Performance of the LHCb muon detector in Run 3},
author = {P. Albicocco and M. Anelli and F. Archilli and M. Atzeni and W. Baldini and A. Balla and S. Belin and N. Bondar and D. Brundu and S. Cadeddu and S. Calì and A. Cardini and M. Carletti and A. Casais Vidal and V. Chulikov and A. Chubykin and P. Ciambrone and L. Congedo and A. Contu and F. Debernardis and E. De Lucia and G. De Robertis and M. De Serio and P. De Simone and F. Dettori and L. Dreyfus and A. Dzyuba and G. Felici and M. Gatta and A. Granik and G. Graziani and D. Ilin and S. Kotriakhova and R. Kristic and A. Lai and R. Litvinov and G. Manca and F. Manganella and S. Mariani and G. Martellotti and E. Minucci and R. Oldeman and M. Palutan and L. Paolucci and G. Passaleva and A. Pastore and D. Pinci and R. Quagliani and T. Rong and R. Santacesaria and M. Santimaria and E. Santovetti and A. Saputi and C. Satriano and A. Satta and B. Sciascia and B. Schmidt and T. Schneider and S. Simone and J. Swallow and R. Vazquez Gomez and S. Vecchi and C. Y. Yu and S. Zhang},
journal= {arXiv preprint arXiv:2604.21075},
year = {2026}
}