Evidence for a new structure in the $J/\ddot{I}ˆp$ and $J/\ddot{I}ˆ\bar{p}$ systems in $B_s^0\to J/\ddot{I}ˆp\bar{p}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +987

An amplitude analysis of flavour-untagged $B_s^0\to J/\ddot{I}ˆp\bar{p}$ decays is performed using a sample of $797\pm 31$ decays reconstructed with the LHCb detector. The data, collecte…