Search for $\hat{I}›$-$\bar{\hat{I}}›$ oscillation in $J/\ddot{I}ˆ\to \hat{I}›\bar{\hat{I}}›$ decay

BESIII Collaboration, M. Ablikim, M. N. Achasov +643

Using $(10087\pm 44)\times 10^6$ $J/\ddot{I}ˆ$ decays collected by the BESIII detector at the BEPCII collider, we search for baryon number violation via $\hat{I}›-\bar{\hat{I}}›$ oscillation in the de…