Searches for baryon and lepton number Violations at BESIII
DOI:
https://doi.org/10.31349/SuplRevMexFis.3.0308049Keywords:
Baryon number violation, Lepton number violation, BESIII, Λ-Λ¯ oscillationAbstract
Based on the data samples of (1310.6 ± 7.0) × 106 J/ψ events at the center-of-mass energy of √ s = 3.097 GeV and 2.93 fb−1 at √ s = 3.773 GeV, BESIII has searched for baryon number violation (BNV) and lepton number violation (LNV) processes in J/ψ, Σ −, and D decays, respectively. No signal events are observed, and the corresponding upper limits on the branching fraction are determined. The Λ-Λ¯ oscillation is also investigated in J/ψ decays, and the upper limits on the oscillation rate and oscillation parameter are extracted.
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Copyright (c) 2022 Huijing Li (Author)
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