g factors of first 2(+) states of neutron-rich Xe, Ba, and Ce isotopes

Using new techniques developed for measuring angular correlations with large detector arrays, the g factors of 2+ states in Xe140,142 are measured for the first time by the method of correlation attenuation in randomly oriented magnetic fields. g factors in Ba146 and Ce146,148 are measured to establish the method by comparison with previous values. The results are discussed in terms of IBM-2 and rotation-vibration models. © 2009 The American Physical Society.