Transverse polarization measurement of Λ hyperons in pNe collisions at √sNN = 68.4 GeV with the LHCb detector
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Author(s)
Aaij, R.
Abdelmotteleb, A. S. W.
Abellan Beteta, C.
Abudinén, F.
Ackernley, T.
Adefisoye, A. A.
Adeva, B.
Adinolfi, M.
Adlarson, P.
Agapopoulou, C.
Date Issued
September 17, 2024
Journal
Journal of High Energy Physics
Publisher
Springer Berlin Heidelberg
Citation
The LHCb collaboration., Aaij, R., Abdelmotteleb, A.S.W. et al. Transverse polarization measurement of Λ hyperons in pNe collisions at √sNN = 68.4 GeV with the LHCb detector. J. High Energ. Phys. 2024, 82 (2024).
Version
Final published version
Abstract
A measurement of the transverse polarization of the Λ andΛ hyperons in pNe
fxed-target collisions at √
sNN = 68.4 GeV is presented using data collected by the LHCb
detector. The polarization is studied using the decay Λ → pπ− together with its charge
conjugated process, the integrated values measured are
PΛ = 0.029 ± 0.019 (stat) ± 0.012 (syst),
PΛ = 0.003 ± 0.023 (stat) ± 0.014 (syst).
Furthermore, the results are shown as a function of the Feynman x variable, transverse
momentum, pseudorapidity and rapidity of the hyperons, and are compared with previous
measurements.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1007/JHEP09(2024)082
