Magnetic moment measurements of the first-excited 2+ states in even Nd isotopes

Abstract

Abstract The g-factors of the first-excited 2+ states of 144, 146, 148Nd were deduced from precession measurements in which the excited nuclei recoil through (TF IMPAC) or stop in (IMPAC) magnetized iron. The transient and static hyperfine fields which are active in these cases have been calibrated. The results for the g-factors, combined with previous data which were reanalyzed in the present work, are: g144 = 0.15 ± 0.02, g146 = 0.25 ± 0.04, g148 = 0.32 ± 0.04. The g-factor for 144Nd, which is abnormally low for a collective 2+ state, cannot be accounted for theoretically.