Search for the weak decay $\psi (3686)\to {\Lambda }_c^{+}{\bar{\Sigma }}^{-}+c.c$

BESIII Collaboration, M. Ablikim, M. N. Achasov +569

Using $(448.1\pm 2.9)\times 10^6$ $\psi (3686)$ events collected with the BESIII detector, we perform the first search for the weak baryonic decay $ψ(3686) \to Λ_c^{+} \barΣ^- +c.c…