A model-independent confirmation of the $Z(4430{)}^{-}$ state

LHCb collaboration, R. Aaij, B. Adeva +723

The decay $B^0\to \psi (2S)K^{+}{\pi }^{-}$ is analyzed using $3\mathrm{f}{\mathrm{b}}^{-1}$ of $pp$ collision data collected with the LHCb detector. A model-independent description of the $\psi (2S)\pi$ mass spe…