High-spin states in Ce-139 have been populated using the Te-130(C-14,5n) reaction. The level scheme has been extended to higher spins, including a new band of dipole transitions. The parity of several states has been changed from negative to positive, mainly based on the comparison with the level structure of the core nucleus Ce-140 and the results of a realistic shell-model calculation. The dipole band is interpreted as a magnetic rotation band with pi h(11/2)(2) circle times nu h(11/2)(-1) configuration built on small deformation axial shape with (epsilon(2) = 0.12, gamma = 0 degrees).
High-spin spectroscopy of Ce-139
ITACO, Nunzio;
2015
Abstract
High-spin states in Ce-139 have been populated using the Te-130(C-14,5n) reaction. The level scheme has been extended to higher spins, including a new band of dipole transitions. The parity of several states has been changed from negative to positive, mainly based on the comparison with the level structure of the core nucleus Ce-140 and the results of a realistic shell-model calculation. The dipole band is interpreted as a magnetic rotation band with pi h(11/2)(2) circle times nu h(11/2)(-1) configuration built on small deformation axial shape with (epsilon(2) = 0.12, gamma = 0 degrees).File in questo prodotto:
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