Model-independent determination of the strong-phase difference between $D^0$ and ${\bar{D}}^0\to {\pi }^{+}{\pi }^{-}{\pi }^{+}{\pi }^{-}$ decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +652

Measurements of the strong-phase difference between $D^0$ and ${\bar{D}}^0\to {\pi }^{+}{\pi }^{-}{\pi }^{+}{\pi }^{-}$ are performed in bins of phase space. The study exploits a sample of quantum-correlated $D\…