A search for the lepton-flavour violating decays B0s→e±μ∓ and B0→e±μ∓ is performed based on a sample of proton-proton collision data corresponding to an integrated luminosity of 3 fb−1, collected with the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. The observed yields are consistent with the background-only hypothesis. Upper limits on the branching fractions are determined to be (B0s→e±μ∓)<5.4(6.3)×10−9 and (B0→e±μ∓)<1.0(1.3)×10−9 at 90%(95%) confidence level, which are the strongest limits on these decays to date.
Search for the lepton-flavour violating decays B(s)0 → e±μ∓
Calabrese, R.;Capriotti, L.;Fiorini, M.;Luppi, E.;Minzoni, L.;Pappalardo, L. L.;Tomassetti, L.;
2018
Abstract
A search for the lepton-flavour violating decays B0s→e±μ∓ and B0→e±μ∓ is performed based on a sample of proton-proton collision data corresponding to an integrated luminosity of 3 fb−1, collected with the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. The observed yields are consistent with the background-only hypothesis. Upper limits on the branching fractions are determined to be (B0s→e±μ∓)<5.4(6.3)×10−9 and (B0→e±μ∓)<1.0(1.3)×10−9 at 90%(95%) confidence level, which are the strongest limits on these decays to date.File in questo prodotto:
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