Determination of $U$-spin breaking parameters with an amplitude analysis of the decay $D^0\to K_{\text{S},\text{L}}^0{\pi }^{+}{\pi }^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +770

We perform a simultaneous amplitude analysis of the decays $D^0\to K_{\text{S}}^0{\pi }^{+}{\pi }^{-}$ and $D^0\to K_{\text{L}}^0{\pi }^{+}{\pi }^{-}$ using an $e^{+}{e}^{-}$ collision data sample, co…