Search for the charmonium weak decay $\psi (2S)\to D_s^{-}{\pi }^{+}+c.c.$ and $\psi (2S)\to D_s^{-}{\rho }^{+}+c.c.$

BESIII Collaboration, M. Ablikim, M. N. Achasov +720

We search for the weak decays $\psi (2S)\to D_s^{-}{\pi }^{+}+c.c.$ and $\psi (2S)\to D_s^{-}{\rho }^{+}+c.c.$ for the first time. The search is based on $(2712.4\pm 14.3)\times 10^6$ events containing th…