Inclusive B-meson flavour-tagging algorithm at LHCb
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A new algorithm is developed to identify the flavour of neutral B mesons at production in pp collisions by utilising all tracks from the hadronisation process. The algorithm is calibrated separately for B0 and B s 0 mesons using B0 → J/ψK+π− and B s 0 → D s − π + decays from pp collision data collected by the LHCb experiment at a centre-of-mass energy of 13 TeV. This new algorithm improves the tagging power by 35% for B0 mesons and 20% for B s 0 mesons when compared to the combined performance of the existing LHCb flavour-tagging algorithms.
Date issued
2025-11-10Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science; MIT Kavli Institute for Astrophysics and Space ResearchJournal
Journal of High Energy Physics
Publisher
Springer Berlin Heidelberg
Citation
The LHCb collaboration., Aaij, R., Abdelmotteleb, A.S.W. et al. Inclusive B-meson flavour-tagging algorithm at LHCb. J. High Energ. Phys. 2025, 41 (2025).
Version: Final published version