Amplitude analysis of the Λ 0 b → pK−γ decay

Author(s)
Aaij, R.; Abdelmotteleb, A. S. W.; Abellan Beteta, C.; Abudinén, F.; Ackernley, T.; ... Show more
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Abstract
The resonant structure of the radiative decay Λ0𝑏→𝑝𝐾−𝛾 in the region of proton-kaon invariant-mass up to 2.5 GeV/c2 is studied using proton-proton collision data recorded at centre-of-mass energies of 7, 8, and 13 TeV collected with the LHCb detector, corresponding to a total integrated luminosity of 9 fb−1. Results are given in terms of fit and interference fractions between the different components contributing to this final state. Only Λ resonances decaying to pK− are found to be relevant, where the largest contributions stem from the Λ(1520), Λ(1600), Λ(1800), and Λ(1890) states.
Date issued
2024-06-18
URI
https://hdl.handle.net/1721.1/155436
Journal
Journal of High Energy Physics
Publisher
Springer Science and Business Media LLC
Citation
The LHCb collaboration., Aaij, R., Abdelmotteleb, A.S.W. et al. Amplitude analysis of the Λ0b→pK−γ decay. J High Energ. Phys. 2024, 98 (2024).
Version: Final published version
ISSN
1029-8479
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