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hep-ex2026
Observation of a Doubly-strange Hyperon in
BESIII Collaboration, M. Ablikim, M. N. Achasov +758
Based on a sample of events collected with the BESIII detector at BEPCII, we report the first observation of the decay $J/ψ\rightarrow K^- Σ^0 \b…
hep-ex2026
Amplitude analysis and branching fraction measurement of the decay
BESIII Collaboration, M. Ablikim, M. N. Achasov +770
An amplitude analysis of the singly Cabibbo-suppressed decay is performed, for the first time, to determine the relative magnitudes and phases of differen…