Investigation of the $\Delta I=1/2$ rule and test of CP violation through the measurement of decay asymmetry parameters in ${\Xi }^{-}$ decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +615

Using $(10087\pm 44)\times 10^6$ $J/\psi$ events collected with the BESIII detector, numerous ${\Xi }^{-}$ and $\Lambda$ decay asymmetry parameters are simultaneously determined from the process…