Abstract
We search for the baryon and lepton number violating charm decays, D→pℓ, where D is either a D0 or a D¯0 and ℓ is a muon or an electron, using a data sample of 921 fb−1 collected by the Belle detector at the KEKB asymmetric energy e+e− collider. In the absence of significant signals, we set upper limits on the branching fractions in the range (5–8)×10−7 at a 90% confidence level, depending on the decay mode. Published by the American Physical Society 2024
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