Deformations and quasiparticle spectra of nuclei in the nobelium region

Abstract

We have performed self-consistent Skyrme Hartree-Fock-Bogolyubov calculations for nuclei close to ${}^{254}$No. Self-consistent deformations, including ${\hat{I}}_{2,4,6,8}^2$ 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.

6 pages, 2 figures; ICFN5 conference proceedings