A search for the lepton-flavour violating decays B0 → K*0 μ± e∓ and Bs0 → φ μ± e∓ is presented, using proton-proton collision data collected by the LHCb detector at the LHC, corresponding to an integrated luminosity of 9 fb^−1. No significant signals are observed and upper limits of B(B0 → K*0 μ+ e−) < 5.7 × 10^−9 (6.9 × 10^−9), B(B0 → K*0 μ− e+) < 6.8 × 10^−9 (7.9 × 10^−9), B(B0 → K*0 μ± e∓) < 10.1 × 10^−9 (11.7 × 10^−9), B(Bs0 → φ μ± e∓) < 16.0 × 10^−9 (19.8 × 10^−9) are set at 90% (95%) confidence level. These results constitute the world’s most stringent limits to date, with the limit on the decay Bs0 → φ μ± e∓ the first being set. In addition, limits are reported for scalar and left-handed lepton-flavour violating New Physics scenarios.

Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adeva, B., et al. (2023). Search for the lepton-flavour violating decays B0 → K*0 μ± e∓ and Bs0 → ϕ μ± e∓. JOURNAL OF HIGH ENERGY PHYSICS, 2023(6), 0-24 [10.1007/jhep06(2023)073].

Search for the lepton-flavour violating decays B0 → K*0 μ± e∓ and Bs0 → ϕ μ± e∓

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

Abstract

A search for the lepton-flavour violating decays B0 → K*0 μ± e∓ and Bs0 → φ μ± e∓ is presented, using proton-proton collision data collected by the LHCb detector at the LHC, corresponding to an integrated luminosity of 9 fb^−1. No significant signals are observed and upper limits of B(B0 → K*0 μ+ e−) < 5.7 × 10^−9 (6.9 × 10^−9), B(B0 → K*0 μ− e+) < 6.8 × 10^−9 (7.9 × 10^−9), B(B0 → K*0 μ± e∓) < 10.1 × 10^−9 (11.7 × 10^−9), B(Bs0 → φ μ± e∓) < 16.0 × 10^−9 (19.8 × 10^−9) are set at 90% (95%) confidence level. These results constitute the world’s most stringent limits to date, with the limit on the decay Bs0 → φ μ± e∓ the first being set. In addition, limits are reported for scalar and left-handed lepton-flavour violating New Physics scenarios.
2023
Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adeva, B., et al. (2023). Search for the lepton-flavour violating decays B0 → K*0 μ± e∓ and Bs0 → ϕ μ± e∓. JOURNAL OF HIGH ENERGY PHYSICS, 2023(6), 0-24 [10.1007/jhep06(2023)073].
Aaij, R.; Abdelmotteleb, A.S.W.; Abellan Beteta, C.; Abudinén, F.; Ackernley, T.; Adeva, B.; Adinolfi, M.; Afsharnia, H.; Agapopoulou, C.; Aidala, C.A...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/951744
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