First Measurement of the Decay Asymmetry in the pure W-boson-exchange Decay ${\Lambda }_c^{+}\to {\Xi }^0{K}^{+}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +628

Based on $4.4{\text{fb}}^{-1}$ of $e^{+}{e}^{-}$ annihilation data collected at the center-of-mass energies between $4.60$ and $4.70\text{GeV}$ with the BESIII detector at the BEPCII…