g-factor of the first excited 4+ states in156Gd and158Gd

Relative g-factor of the first 2+ and 4+ states have been measured with the transient field technique in156Gd and158Gd. The precession of gamma rays depopulating the levels under study were observed, after passing through thin polarized gadolinium. The observed values agree with the predictions of the rotational model, i.c. g(4+)= g(2+), while contrasting the hypothesis that in156Gd the g-factor of the 4+ is reduced with respect to the 2+, because of rotational alignment.