The g-factor and the electric quadrupole moment of the 7/2+ isomer in125Xe
The time differential perturbed angular distribution method (PAD) was used to measure theg-factor and the electric quadrupole interaction in a Cd single crystal for thet1/2=140 ns,Iπ=7/2+ isomer in125Xe. Theg-factor isg=+0.264(10) and the quadrupole coupling constante2Qq/h=122.1 (6) MHz at 552 K. The lifetime of theIπ=11/2+ state was measured to beτ=11.3 (1.1) ps by the recoil distance method (RDM). From an analysis of the spectroscopic data using the triaxial-rotor-plus-particle (TRPP) model the quadrupole moment of the 7/2+ isomer is deduced to beQ=1.40 (15) b yielding an electric field gradient (efg)eq=3.6(4)·1017 V/cm2 for XeCd.