Ablikim, M Observation of the Semileptonic D^ Decay into the K[over ¯]_(1270)^ Axial-Vector Meson. [electronic resource] - Physical review letters Dec 2019 - 231801 p. digital Publication Type: Journal Article ISSN: 1079-7114 Standard No.: 10.1103/PhysRevLett.123.231801 doi