Ablikim, M Observation of the Semileptonic Decay D^→a_(980)^e^ν_ and Evidence for D^→a_(980)^e^ν_. [electronic resource] - Physical review letters Aug 2018 - 081802 p. digital Publication Type: Journal Article ISSN: 1079-7114 Standard No.: 10.1103/PhysRevLett.121.081802 doi