Evidence for the decay $B^0_s\toϕη'$
LHCb collaboration, R. Aaij, M. Abdelfatah, A. S. W. Abdelmotteleb et autres
Using a dataset corresponding to an integrated luminosity of $9 \,\textrm{fb}^{-1}$ collected in proton-proton collisions between 2011 and 2018 by the LHCb experiment, evidence is found for the decay $B^0_s\toϕη'$ with $3.5 σ$ significance. The branching ratio relative to the $B^0_s\toϕϕ$ decay …