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.

Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinen, F., Ackernley, T., Adefisoye, A., et al. (2024). Analysis of Λ0b→ pK−μ+μ− decays. JOURNAL OF HIGH ENERGY PHYSICS, 2024(12) [10.1007/JHEP12(2024)147].

Analysis of Λ0b→ pK−μ+μ− decays

Anelli A.;Borsato M.;Calvi M.;Capelli S.;Carniti P.;Fazzini D.;Garcia Pardinas J.;Kirsebom V. S.;Malentacca L.;Martinelli M.;Minotti A.;Pizzichemi M.;Salomoni M.;
2024

Abstract

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.
Articolo in rivista - Articolo scientifico
B Physics; Flavour Changing Neutral Currents; Flavour Physics; Hadron-Hadron Scattering;
English
19-dic-2024
2024
2024
12
147
none
Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinen, F., Ackernley, T., Adefisoye, A., et al. (2024). Analysis of Λ0b→ pK−μ+μ− decays. JOURNAL OF HIGH ENERGY PHYSICS, 2024(12) [10.1007/JHEP12(2024)147].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/579007
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