Search for B ( s ) ∗ 0 → μ + μ - in B c + → π + μ + μ - decays
Name
10052_2024_Article_13573.pdf
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1.87 MB
Format
Adobe PDF
Checksum (MD5)
a52932a6cf727854963392235bf22914
Author(s)
LHCb Collaboration
Date Issued
January 13, 2025
Journal
The European Physical Journal C
Publisher
Springer Berlin Heidelberg
Citation
LHCb Collaboration. Search for B ( s ) ∗ 0 → μ + μ - in B c + → π + μ + μ - decays. Eur. Phys. J. C 85, 20 (2025).
Version
Final published version
Abstract
A search for the very rare B ∗ 0 → μ + μ - and B s ∗ 0 → μ + μ - decays is conducted by analysing the B c + → π + μ + μ - process. The analysis uses proton-proton collision data collected with the LHCb detector between 2011 and 2018, corresponding to an integrated luminosity of 9 \,fb - 1 . The signal signatures correspond to simultaneous peaks in the μ + μ - and π + μ + μ - invariant masses. No evidence for an excess of events over background is observed for either signal decay mode. Upper limits at the 90 % confidence level are set on the branching fractions relative to that for B c + → J / ψ π + decays, R B ∗ 0 ( μ + μ - ) π + / J / ψ π + < 3.8 × 10 - 5 and R B s ∗ 0 ( μ + μ - ) π + / J / ψ π + < 5.0 × 10 - 5.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1140/epjc/s10052-024-13573-0
