Bulg. J. Phys. vol.44 no.4 (2017), pp. 498-508

j-1 Anomaly through the Silver Isotopic Chain

S. Lalkovski
Department of Nuclear Engineering, Faculty of Physics, St. Kl. Ohridski University of Sofia, 1164, Sofia, Bulgaria
Abstract. The silver nuclei are placed in the verge between the classical shell model and collective nuclear regions. As such, properties often attributed to one or another mode are observed to co-exist at low excitation energies. Of particular interest is the competition between the π g9/2-3 configuration and the core excitations, which has been challenging for a number of theoretical models to describe. This work presents a systematical study of low-lying excited states in the silver nuclei. A correlation between the (j,j-1) energy gap and the core's 2+ level energy is observed, which seems to be coherent, to certain extent, with both the particle-core coupling and the shell model approaches.

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