A first search for the lepton-flavour violating decays B 0 → K *0 τ± μ∓ is presented. The analysis is performed using a sample of proton-proton collision data, collected with the LHCb detector at centre-of-mass energies of 7, 8 and 13 TeV between 2011 and 2018, corresponding to an integrated luminosity of 9 fb−1. No significant signal is observed, and upper limits on the branching fractions are determined to be B(B0→K∗0τ+μ−)<1.0(1.2)×10−5 and B(B0→K∗0τ−μ+)<8.2(9.8)×10−6 at the 90% (95%) confidence level.

Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinen, F., Ackernley, T., Adeva, B., et al. (2023). Search for the lepton-flavour violating decays B 0 → K*0 τ± μ∓. JOURNAL OF HIGH ENERGY PHYSICS, 2023(6) [10.1007/JHEP06(2023)143].

Search for the lepton-flavour violating decays B 0 → K*0 τ± μ∓

Borsato M.;Calvi M.;Capelli S.;Carniti P.;Fazzini D.;Garcia Pardinas J.;Gotti C.;Kirsebom V. S.;Martinazzoli L.;Martinelli M.;Meloni S.;Minotti A.;Petruzzo M.;Pizzichemi M.;Salomoni M.;Shields E. B.;
2023

Abstract

A first search for the lepton-flavour violating decays B 0 → K *0 τ± μ∓ is presented. The analysis is performed using a sample of proton-proton collision data, collected with the LHCb detector at centre-of-mass energies of 7, 8 and 13 TeV between 2011 and 2018, corresponding to an integrated luminosity of 9 fb−1. No significant signal is observed, and upper limits on the branching fractions are determined to be B(B0→K∗0τ+μ−)<1.0(1.2)×10−5 and B(B0→K∗0τ−μ+)<8.2(9.8)×10−6 at the 90% (95%) confidence level.
Articolo in rivista - Articolo scientifico
B Physics; Beyond Standard Model; Hadron-Hadron Scattering; Rare Decay;
English
23-giu-2023
2023
2023
6
143
open
Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinen, F., Ackernley, T., Adeva, B., et al. (2023). Search for the lepton-flavour violating decays B 0 → K*0 τ± μ∓. JOURNAL OF HIGH ENERGY PHYSICS, 2023(6) [10.1007/JHEP06(2023)143].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/454542
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