Deformations and quasiparticle spectra of nuclei in the nobelium region

TL;DR

This paper uses self-consistent Skyrme Hartree-Fock-Bogolyubov calculations to analyze nuclear deformations and quasiparticle spectra near nobelium, showing good agreement with experimental data and Woods-Saxon models.

Contribution

It provides a detailed self-consistent analysis of nuclear deformations and quasiparticle spectra in the nobelium region, including high-order deformations as functions of rotational frequency.

Findings

High-order deformations similar to Woods-Saxon results

Experimental quasiparticle energies are well reproduced

Deformation parameters vary with rotational frequency

Abstract

We have performed self-consistent Skyrme Hartree-Fock-Bogolyubov calculations for nuclei close to $^{254}$No. Self-consistent deformations, including $\beta_{2,4,6,8}$ as functions of the rotational frequency, were determined for even-even nuclei $^{246,248,250}$Fm, $^{252,254}$No, and $^{256}$Rf. The quasiparticle spectra for N=151 isotones and Z=99 isotopes were calculated and compared with experimental data and the results of Woods-Saxon calculations. We found that our calculations give high-order deformations similar to those obtained for the Woods-Saxon potential, and that the experimental quasiparticle energies are reasonably well reproduced.