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

LHCb collaboration, R. Aaij, B. Adeva +680

The resonant structure of the decay ${\overline{B}}_s^0\to J/\psi {\pi }^{+}{\pi }^{-}$ is studied using data corresponding to 3 fb${}^{-1}$ of integrated luminosity from $pp$ collisions by the LHC and…