New measurement of thegfactor of the54Cr(21+)state and its shell model interpretation

Abstract

The g factor of the first ${2}^{+}$ state of ${}^{54}\mathrm{Cr}$ was remeasured employing the combined technique of projectile Coulomb excitation in inverse kinematics and transient magnetic fields. The value obtained, $g=+0.840(56),$ is significantly larger than previous data. The new value agrees better with a truncated than with a large-scale shell model calculation. The present result is discussed in the context of recently determined g factors of the first ${2}^{+}$ states of ${}^{50}\mathrm{Cr}$ and ${}^{52}\mathrm{Cr}$ as well as $B(E2)$ values determined from lifetime measurements.