Ground state magnetic dipole moment of ³⁵K

The ground state magnetic moment of ³⁵K has been measured using the technique of nuclear magnetic resonance on β-emitting nuclei. The short-lived ³⁵K nuclei were produced following the reaction of a ³⁶Ar primary beam of energy 150 MeV/nucleon incident on a Be target. The spin polarization of the ³⁵K nuclei produced at 2° relative to the normal primary beam axis was confirmed. Together with the mirror nucleus ³⁵S, the measurement represents the heaviest T=3/2 mirror pair for which the spin expectation value has been obtained. A linear behavior of g_p vs g_n has been demonstrated for the T=3/2 known mirror moments and the slope and intercept are consistent with the previous analysis of T=1/2 mirror pairs.