Medium- and high-spin band structure of the chiral candidate La-132

Medium- and high-spin states of La-132 have been studied based on the data obtained from Mo-100(S-36, p3n) and Cd-116(Na-23, alpha 3n) fusion-evaporation reactions using the EUROBALL and Gammasphere detector arrays, respectively. Triple-gamma coincidence relations, angular correlations, and linear polarizations of the observed gamma transitions have been deduced. The level scheme of La-132 has been considerably extended, and unambiguous spin and parity values have been assigned to most of the excited states. The configuration of one of the bands is pi g(7/2)(h(11/2))(2)nu h(11/2) instead of the previously thought pi h(11/2)nu h(11/2); thus its previously suggested magnetic rotational character cannot be upheld. The observed similarities between the level structures of La-132 and Pr-134 suggest the possible existence of a third pi h(11/2)nu h(11/2) band in La-132 that may show chiral features. DOI: 10.1103/PhysRevC.87.044323