https://doi.org/10.1051/epjconf/202532902008
Symmetry conserving configuration mixing calculations of Zr isotopes beyond N = 50 shell closure
Departamento de Estructura de la Materia, Física Térmica y Electrónica and IPARCOS, Universidad Complutense de Madrid, Plaza de Ciencias 1, E-28040, Madrid ( Spain )
* e-mail: tr.rodriguez@ucm.es
Published online: 25 June 2025
The symmetry conserving configuration mixing (SCCM) method with the Gogny D1S interaction has been used to study the structure of 90-110Zr even-even isotopes. Calculations include the mixing of particle-number and angular momentum projected intrinsic wave functions that are defined along triaxial quadrupole degrees of freedom. A very good description of the 2+1, 4+1 experimental excitation energies and B(E2) transition probabilities is obtained for N ≥ 60 nuclei, but not for 96−98Zr isotopes, where the large (small) experimental energies (transition probabilities) cannot be reproduced with the present calculations. Finally, shape coexistence and shape mixing is also expected to occur in this isotopic chain.
© The Authors, published by EDP Sciences, 2025
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