Diamagnetic correction to the ${}^9$Be${}^{+}$ ground-state hyperfine constant

N. Shiga, W. M. Itano, J. J. Bollinger

We report an experimental determination of the diamagnetic correction to the ${}^9$Be${}^{+}$ ground state hyperfine constant $A$. We measured $A$ = $-625008837.371(11)$ Hz at a magn…