New measurements of the g factor of the 20Ne(41+) state with fs lifetime

In view of the puzzlingly small g factor, obtained for the 20Ne(41+) state in previous measurements, in contradiction to all existing theoretical calculations, we have performed a new set of experiments that rigorously test the former results. Besides employing the same nuclear reaction for populating the nuclear states, new experimental features were introduced to exert strict control on the relevant parameters of the transient magnetic hyperfine field technique. The new result, g(41+)=+0.38(8), is close to theoretical predictions.