Using(448.1±2.9)×106 ψ(3686)events collected with the BESIII detector, we perform the first search for the weak baryonic decay ψ(3686) → Λ+c Σ ̄ − + c.c. . The analysis procedure is optimized using a blinded method. No significant signal is observed, and the upper limit on the branching fraction ( B ) of ψ(3686) → Λ+c Σ ̄ − + c.c. is set as 1.4 × 10−5 at the 90% confidence level.
Search for the weak decay ψ(3686) → Λ+c Σ ̄ − + c.c.*
I. Garzia;M. Scodeggio;
2023
Abstract
Using(448.1±2.9)×106 ψ(3686)events collected with the BESIII detector, we perform the first search for the weak baryonic decay ψ(3686) → Λ+c Σ ̄ − + c.c. . The analysis procedure is optimized using a blinded method. No significant signal is observed, and the upper limit on the branching fraction ( B ) of ψ(3686) → Λ+c Σ ̄ − + c.c. is set as 1.4 × 10−5 at the 90% confidence level.File in questo prodotto:
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