Measurement of the longitudinal spin-dependent neutron-proton total cross-section difference Delta sigma L(np) between 500 and 800 MeV. [electronic resource] - Physical review. D, Particles and fields Jul 1994 - 104-123 p. digital Publication Type: Journal Article ISSN: 0556-2821 Standard No.: 10.1103/physrevd.50.104 doi