Shell closure effects in the stable74–82Se isotopes from magnetic moment measurements using projectile excitation and the transient field technique

Projectile excitation and the transient field technique have been used to measure the $g$ factors of the 2${}_1^{+},$ 2${}_2^{+},$ and 4${}_1^{+}$ states in ${}^{74–82}$Se in order to study the influence of the $N=50\mathrm{}$ shell closure at low excitation energies. The states of interest were populated by Coulomb exciting beams of the appropriate isotope by the same natural Si target. The results demonstrate that inverse kinematics provides a very powerful technique, highly suitable for measurements with radioactive beams. The $g$ factors obtained for ${}^{74–82}$Se are compared with results from IBM-II calculations.