We present a search for seven lepton-flavor-violating neutral charm meson decays of the type D0→X0e±μ, where X0 represents a π0, KS0, K̄∗0, ρ0, φ, ω, or η meson. The analysis is based on 468 fb-1 of e+e- annihilation data collected at or close to the (4S) resonance with the BABAR detector at the SLAC National Accelerator Laboratory. No significant signals are observed, and we establish 90% confidence level upper limits on the branching fractions in the range (5.0-22.5)×10-7. The limits are between 1 and 2 orders of magnitude more stringent than previous measurements.

Lees, J., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., et al. (2020). Search for lepton-flavor-violating decays D0 →x0e±μ SEARCH for LEPTON-FLAVOR-VIOLATING DECAYS ⋯ LEES J. P. et al. PHYSICAL REVIEW D, 101(11) [10.1103/PhysRevD.101.112003].

Search for lepton-flavor-violating decays D0 →x0e±μ SEARCH for LEPTON-FLAVOR-VIOLATING DECAYS ⋯ LEES J. P. et al

Carpinelli M.;
2020

Abstract

We present a search for seven lepton-flavor-violating neutral charm meson decays of the type D0→X0e±μ, where X0 represents a π0, KS0, K̄∗0, ρ0, φ, ω, or η meson. The analysis is based on 468 fb-1 of e+e- annihilation data collected at or close to the (4S) resonance with the BABAR detector at the SLAC National Accelerator Laboratory. No significant signals are observed, and we establish 90% confidence level upper limits on the branching fractions in the range (5.0-22.5)×10-7. The limits are between 1 and 2 orders of magnitude more stringent than previous measurements.
Articolo in rivista - Articolo scientifico
BaBar
English
2020
101
11
112003
none
Lees, J., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., et al. (2020). Search for lepton-flavor-violating decays D0 →x0e±μ SEARCH for LEPTON-FLAVOR-VIOLATING DECAYS ⋯ LEES J. P. et al. PHYSICAL REVIEW D, 101(11) [10.1103/PhysRevD.101.112003].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/395234
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