Amplitude analysis of the $\hat{I}{ž}_c^{+}\to p{K}^{-}\ddot{I}{€}^{+}$ decay and $\hat{I}{ž}_c^{+}$ baryon polarization measurement in semileptonic beauty-hadron decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1128

An amplitude analysis of the $\hat{I}{ž}_c^{+}\to p{K}^{-}\ddot{I}{€}^{+}$ decay together with a measurement of the $\hat{I}{ž}_c^{+}$ polarization vector in semileptonic beauty-hadron decays is presented. The analy…