Märkisch, B Measurement of the Weak Axial-Vector Coupling Constant in the Decay of Free Neutrons Using a Pulsed Cold Neutron Beam. [electronic resource] - Physical review letters Jun 2019 - 242501 p. digital Publication Type: Journal Article ISSN: 1079-7114 Standard No.: 10.1103/PhysRevLett.122.242501 doi