New measurement of the {sup 68}Zn(4{sub 1}{sup +}) g factor combined with a reanalysis of previous data

We have remeasured and have redetermined the $g$ factor for the ${4}_{1}^{+}$ state in $^{68}\\mathrm{Zn}$ following inconsistencies between earlier measurements and a recent result. We have reanalyzed several former measurements by applying an alternative analysis procedure, which allows for determining the precession effect separately for each gamma detector implying less uncertainties in the background subtraction for the relevant spectra. In addition, all measured $g$-factor and $B(E2)$ data for the first ${2}^{+}$ and ${4}^{+}$ states in all stable even-$A$ Zn isotopes and the radioactive $^{62}\\mathrm{Zn}$, are compared with new large-scale shell model calculations based on the most advanced effective interaction in the $\\mathit{fpg}$-shell model space.