Deuteron identification via time of flight with LHCb
Name
10052_2025_Article_14776.pdf
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4.18 MB
Format
Adobe PDF
Checksum (MD5)
72270677ee5f4507f3f42a94cb80a315
Author(s)
LHCb Collaboration
Date Issued
November 19, 2025
Journal
The European Physical Journal C
Publisher
Springer Berlin Heidelberg
Citation
LHCb Collaboration. Deuteron identification via time of flight with LHCb. Eur. Phys. J. C 85, 1329 (2025).
Version
Final published version
Abstract
It is shown that the timing capabilities of the LHCb detector operated during the LHC Run 2 can be used to identify light ion particles with momenta of a few GeV/c. This is achieved by estimating the particle time of flight through a newly developed technique. A dedicated reconstruction procedure and a neural-network-based estimator of the particle speed have been developed to enable deuteron identification by suppressing the abundant background from lighter particles. The performance of the identification procedure is demonstrated in a sample of proton-helium collisions at s NN = 110 GeV, where the production of deuteron and triton particles is observed. This novel approach opens the way to study deuteron and antideuteron production for different collision systems at different energy scales, exploiting the rich dataset collected by the LHCb experiment.
MIT Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Lincoln Laboratory
Terms of Use
Creative Commons Attribution
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1140/epjc/s10052-025-14776-9
