The branching fraction ratios of (Formula presented) and (Formula presented) decays are measured with respect to their muonic counterparts, using a data sample corresponding to an integrated luminosity of (Formula presented) collected by the LHCb experiment in proton-proton collisions at (Formula presented). The reconstructed final states are formed by combining (Formula presented) mesons with (Formula presented) candidates, where the (Formula presented) is reconstructed via the (Formula presented) decay. The results are (Formula presented), (Formula presented), where the first uncertainties are statistical and the second systematic. The two measurements have a correlation coefficient of (Formula presented) and are compatible with the standard model.

Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adefisoye, A., et al. (2025). Measurement of the Branching Fraction Ratios (Formula presented) and (Formula presented) Using Muonic (Formula presented) Decays. PHYSICAL REVIEW LETTERS, 134(6) [10.1103/physrevlett.134.061801].

Measurement of the Branching Fraction Ratios (Formula presented) and (Formula presented) Using Muonic (Formula presented) Decays

Anelli, A.;Borsato, M.;Calvi, M.;Capelli, S.;Carniti, P.;Fazzini, D.;Gotti, C.;Kirsebom, V.  S.;Malentacca, L.;Martinazzoli, L.;Martinelli, M.;Minotti, A.;Pizzichemi, M.;Salomoni, M.;
2025

Abstract

The branching fraction ratios of (Formula presented) and (Formula presented) decays are measured with respect to their muonic counterparts, using a data sample corresponding to an integrated luminosity of (Formula presented) collected by the LHCb experiment in proton-proton collisions at (Formula presented). The reconstructed final states are formed by combining (Formula presented) mesons with (Formula presented) candidates, where the (Formula presented) is reconstructed via the (Formula presented) decay. The results are (Formula presented), (Formula presented), where the first uncertainties are statistical and the second systematic. The two measurements have a correlation coefficient of (Formula presented) and are compatible with the standard model.
Articolo in rivista - Articolo scientifico
Branching fractions; Correlation coefficient; Data sample; Final state; Integrated luminosity; Measurements of; Proton proton collisions; The standard model; Uncertainty
English
10-feb-2025
2025
134
6
061801
open
Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adefisoye, A., et al. (2025). Measurement of the Branching Fraction Ratios (Formula presented) and (Formula presented) Using Muonic (Formula presented) Decays. PHYSICAL REVIEW LETTERS, 134(6) [10.1103/physrevlett.134.061801].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/560989
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