Nuclear Spin, Hyperfine-Structure Separation, and Magnetic Moment of 22-Hour Potassium-43

Abstract

With the atomic-beam magnetic-resonance method, the nuclear spin and hyperfine-structure separation have been measured for 22-hour ${\mathrm{K}}^{43}$. The results are $I=\frac{3}{2}$, $\ensuremath{\Delta}\ensuremath{\nu}(^{2}S_{\frac{1}{2}})=192.64\ifmmode\pm\else\textpm\fi{}0.05$ Mc/sec. The nuclear magnetic moment calculated from these measurements is $|\ensuremath{\mu}|=0.163\ifmmode\pm\else\textpm\fi{}0.002$ nuclear magneton.