Aaij, R Observation of J/ψϕ Structures Consistent with Exotic States from Amplitude Analysis of B^→J/ψϕK^ Decays. [electronic resource] - Physical review letters Jan 2017 - 022003 p. digital Publication Type: Journal Article ISSN: 1079-7114 Standard No.: 10.1103/PhysRevLett.118.022003 doi