First Experimental Value of a mixed-symmetry G Factor: $^{94}$Zr

Zr isotopes have the characteristic of a neutron(n)-dominated and a proton(p)-dominated $2^+$ state, resembling the building blocks of collective quadrupole excited states, i.e. one-phonon pn symmetric and mixed-symmetric $2^+$ states. The pn configuration mixing in these states can be tested by measuring their g factors. The g factors predicted by different models vary due to the characterization of the symmetry breaking. The g factor of a mixed symmetric state has been measured for the first time in $^{94}$Zr using the transient magnetic field technique at WNSL. The result, proving dominant p character in the $2^+_2$ state, will be presented and compared with theory. Work supported by USDOE under contracts DE-FG02-91ER-40609, DE-FG52-05NA25929, and DE-FG02-88ER40417 and th US NSF.