Abstract
Changes in the shape of nuclei in the chains of even—even crypton, strontium, zirconium, molybdenum, and ruthenium isotopes are studied on the basis of the relativistic Hartree—Bogolyubov method implemented with the DD-PC1 and DD-ME2 Lagrangian models. Nucleon pairing is described in terms of separable two-body interaction. The dependence of the calculated nuclear features on the choice of pairing strength is investigated. The respective calculations show that, in the vicinity of N = 60, large jumps of the mean squares of charge radii and quadrupole-deformation parameters are observed for some strontium, zirconium, and molybdenum isotopes in response to variations in the pairing-strength parameters.
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