Bulg. J. Phys. vol.46 no.4 (2019), pp. 247-258

Multiple Quantum Phase Transitions in the Zr Isotopes

N. Gavrielov1, A. Leviatan1, F. Iachello2
1Racah Institute of Physics, The Hebrew University, Jerusalem 91904, Israel
2Center for Theoretical Physics, Sloane Physics Laboratory, Yale University, New Haven, Connecticut 06520-8120, USA
Abstract. We present a detailed analysis of spectra and other observables for the entire chain of Zr isotopes, from neutron number 52 to 70, in the framework of the interacting boson model with configuration mixing. The results suggest a remarkable interplay of multiple quantum phase transitions (QPTs). One type of QPT involves an abrupt crossing of normal and intruder configurations, superimposed on a second type of QPT involving gradual shape-changes within each configuration.

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