A first search for the lepton-flavour violating decays B0 → 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*0 τ+ μ−) < 1.0(1.2) × 10^−5 and B(B0 → K*0 τ− μ+) < 8.2(9.8) × 10^−6 at the 90% (95%) confidence level.

Aaij, R., Abdelmotteleb, A.S.W., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adeva, B., et al. (2023). Search for the Lepton-Flavour Violating Decays B0 → K*0 τ± μ∓. JOURNAL OF HIGH ENERGY PHYSICS, 2023(6), 0-24 [10.1007/jhep06(2023)143].

Search for the Lepton-Flavour Violating Decays B0 → K*0 τ± μ∓

Carbone, A.;Ferrari, F.;Galli, D.;Manuzzi, D.;Patrignani, C.;Villa, A.;Zucchelli, S.;
2023

Abstract

A first search for the lepton-flavour violating decays B0 → 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*0 τ+ μ−) < 1.0(1.2) × 10^−5 and B(B0 → K*0 τ− μ+) < 8.2(9.8) × 10^−6 at the 90% (95%) confidence level.
2023
Aaij, R., Abdelmotteleb, A.S.W., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adeva, B., et al. (2023). Search for the Lepton-Flavour Violating Decays B0 → K*0 τ± μ∓. JOURNAL OF HIGH ENERGY PHYSICS, 2023(6), 0-24 [10.1007/jhep06(2023)143].
Aaij, R.; Abdelmotteleb, A. S. W.; Abellan Beteta, C.; Abudinén, F.; Ackernley, T.; Adeva, B.; Adinolfi, M.; Afsharnia, H.; Agapopoulou, C.; Aidala, C...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/951795
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