Analysis of Λ0b→ pK−μ+μ− decays

The LHCb collaboration

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Resumen

The differential branching fraction and angular coefficients of Formula Presented decays are measured in bins of the dimuon mass squared and dihadron mass. The analysis is performed using a data set corresponding to 9 fb−1 of integrated luminosity collected with the LHCb detector between 2011 and 2018. The data are consistent with receiving contributions from a mixture of Λ resonances with different spin-parity quantum numbers. The angular coefficients show a pattern of vector-axial vector interference that is a characteristic of the type of flavour-changing neutral-current transition relevant for these decays.

Idioma originalInglés
Número de artículo147
PublicaciónJournal of High Energy Physics
Volumen2024
N.º12
DOI
EstadoPublicada - dic. 2025
Publicado de forma externa

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