Amplitude analysis of the Λ 0 b → pK−γ decay
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13130_2024_Article_23718.pdf
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Checksum (MD5)
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Author(s)
Aaij, R.
Abdelmotteleb, A. S. W.
Abellan Beteta, C.
Abudinén, F.
Ackernley, T.
Adeva, B.
Adinolfi, M.
Adlarson, P.
Agapopoulou, C.
Aidala, C. A.
Date Issued
June 18, 2024
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
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.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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Creative Commons Attribution
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DOI of Published Version
https://doi.org/10.1007/jhep06(2024)098
