Abstract
In this paper we focus on three mass regions where first-order phase transitions occur, namely, for , 60, and 90. We investigate four isotopic chains (Se, Zr, Mo, and Nd) in the framework of microscopic Skyrme-Hartree-FockBardeen-Cooper-Schrieffer calculations for 15 different parametrizations. The microscopic calculations show the typical behavior expected for first-order phase transitions. To find the best candidate for the critical point phase transition we propose different microscopic position and occupation indices calculated for positive-parity and negative-parity proton and neutron single-quasiparticle states around the Fermi level. The microscopic calculations are completed by macroscopic calculations within the algebraic collective model (ACM), and compared with the experimental data for , , and , considered to be the best candidates for the critical-point nuclei.
21 More- Received 20 April 2024
- Accepted 9 July 2024
DOI:https://doi.org/10.1103/PhysRevC.110.024317
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