Hyperfine structure measurements in75As,31P and53Cr

Abstract
Energy intervals in 75As, 31P and 53Cr ground state hyperfine multiplets have been measured using the techniques of atomic beam magnetic resonance. Values for the interaction constants have been found which are consistent with all measured intervals to within the experimental errors. The results are for 75As: A = -66.204(1) mc/s, B = -0.535(3) mc/s, gJ = -1.9965(8); for 31P: A = +55.061(10) mc/s, gJ = -2.00165(40); and for 53Cr: A = -82.5994(16) mc/s and B = +0.008(12) mc/s.