Search for $\bar{\Lambda }$-$\Lambda$ oscillations in the decay $J/\psi \to p{K}^{-}\bar{\Lambda }+c.c.$

BESIII Collaboration, M. Ablikim, M. N. Achasov +454

We report the first search for $\bar{\Lambda }$--$\Lambda$ oscillations in the decay $J/\psi \to p{K}^{-}\bar{\Lambda }+c.c.$ by analyzing $1.31\times 10^9$ $J/\psi$ events accumulated with the BESIII detector at…