Evidence for an ${\eta }_c(1S){\pi }^{-}$ resonance in $B^0\to {\eta }_c(1S)K^{+}{\pi }^{-}$ decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +842

A Dalitz plot analysis of $B^0\to {\eta }_c(1S)K^{+}{\pi }^{-}$ decays is performed using data samples of $pp$ collisions collected with the LHCb detector at centre-of-mass energies of $\sqrt{s…