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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/174979
Search for Rare or Forbidden Decays of the D-0 Meson
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We present a search for nine lepton-number-violating and three lepton-flavor-violating neutral charm decays of the type D0→h'−h−ℓ'+ℓ+ and D0→h'−h+ℓ'±ℓ∓, where h and h′ represent a K or π meson and ℓ and ℓ′ an electron or muon. The analysis is based on 468 fb−1 of e+e− annihilation data collected at or close to the Υ(4S) resonance with the BABAR detector at the SLAC National Accelerator Laboratory. No significant signal is observed for any of the twelve modes, and we establish 90% confidence level upper limits on the branching fractions in the range (1.0-30.6)×10−7. The limits are between 1 and 3 orders of magnitude more stringent than previous measurements.
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GRAUGÉS POUS, Eugeni and BABAR Collaboration. Search for Rare or Forbidden Decays of the D-0 Meson. Physical Review Letters. 2020. Vol. 124, num. 7, pags. 071802. ISSN 0031-9007. [consulted: 9 of October of 2026]. Available at: https://hdl.handle.net/2445/174979