Microscopic description of systematic doublet bands in the A similar to 130 region

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Source published by Institute of Physics.The properties of the yrast and yrare states in the mass A 〜 130 region are studied by a full microscopic theoretical framework of the pair-truncated shell model. This approach for energy levels and electromagnetic transition rates in 134La gives good agreement with experiment. The analysis of the wave functions reveals new band structure, which results from chopsticks configurations of two angular momenta of the unpaired neutron and the unpaired proton, weakly coupled with the quadrupole collective excitations of the even-even core.