Measurement of the $D\to K^{-}{\pi }^{+}$ strong phase difference in $\psi (3770)\to D^0\overline{D}{}^0$

BESIII Collaboration, M. Ablikim, M. N. Achasov +381

We study $D^0\overline{D}{}^0$ pairs produced in $e^{+}{e}^{-}$ collisions at $\sqrt{s}=3.773$ GeV using a data sample of 2.92 fb${}^{-1}$ collected with the BESIII detector. We measure th…