Measurement of the resonant and CP components in ${\overline{B}}^0\to J/\psi {\pi }^{+}{\pi }^{-}$ decays

LHCb collaboration, R. Aaij, B. Adeva +693

The resonant structure of the reaction ${\overline{B}}^0\to J/\psi {\pi }^{+}{\pi }^{-}$ is studied using data from 3 fb${}^{-1}$ of integrated luminosity collected by the LHCb experiment, one-t…