The observed matter-antimatter asymmetry in the universe is a serious challenge to our understanding of nature. Baryon/lepton number violation (BNV/LNV) decays have been searched for in many experiments to understand this large-scale observed fact. We present the recent results from the BESIII experiment, including a search for BNV through - oscillation in the decays J/ pK^- and J/. We also present searches for LNV in Dₛ^+ h^+h⁰e^+e^- and /^+^-e^+e^- decays, alongside probes into processes violating both baryon and lepton numbers simultaneously, such as ⁰ K^+e^-/K^-e^+.
Xudong Yu (Mon,) studied this question.
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