The resonant structure of the radiative decay Λ0 b →pK− γ in the region of proton-kaon invariant-mass up to 2.5GeV /c2 is studied using proton-proton collision data recorded at centre-of-mass energies of 7, 8, and 13TeV 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 Λresonances 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.

Amplitude analysis of the $$ {\Lambda}_{\textrm{b}}^0\to {\textrm{pK}}^{-}\upgamma $$ decay / Null, N., Aaij, R., Abdelmotteleb, A.S.W., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adeva, B., Adinolfi, M., Adlarson, P., Agapopoulou, C., Aidala, C.A., Ajaltouni, Z., Akar, S., Akiba, K., Albicocco, P., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Aliouche, Z., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2024:6(2024). [10.1007/jhep06(2024)098]

Amplitude analysis of the $$ {\Lambda}_{\textrm{b}}^0\to {\textrm{pK}}^{-}\upgamma $$ decay

Casse, G.;Sarti, A.;
2024

Abstract

The resonant structure of the radiative decay Λ0 b →pK− γ in the region of proton-kaon invariant-mass up to 2.5GeV /c2 is studied using proton-proton collision data recorded at centre-of-mass energies of 7, 8, and 13TeV 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 Λresonances 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.
2024
Flavour Physics, Particle and Resonance Production, Rare Decay, Hadron-Hadron Scattering
01 Pubblicazione su rivista::01a Articolo in rivista
Amplitude analysis of the $$ {\Lambda}_{\textrm{b}}^0\to {\textrm{pK}}^{-}\upgamma $$ decay / Null, N., Aaij, R., Abdelmotteleb, A.S.W., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adeva, B., Adinolfi, M., Adlarson, P., Agapopoulou, C., Aidala, C.A., Ajaltouni, Z., Akar, S., Akiba, K., Albicocco, P., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Aliouche, Z., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2024:6(2024). [10.1007/jhep06(2024)098]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1720394
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