Observation of the $\Lambda_\mathrm{b}^0 \to$ J/$\psi \Lambda \phi$ decay in proton-proton collisions at $\sqrt{s}=$ 13 TeV
Phys.Lett. B802 (2020) 135203
The collaboration

Abstract (data abstract)
CERN-LHC-CMS. Observation of the Lambda-b to J/psi Lambda phi decay in proton-proton collisions at sqrt(s)= 13 TeV.