Evolution of deformations in medium-mass nuclei

Details Evolution of deformations in medium-mass nuclei Evolution of deformations in medium-mass nuclei

2005-10-28

arxiv.org/abs/nucl-th/0510086v1

Phys.Rev. C72 (2005) 054311

Physics

Nuclear Physics

Nuclear Theory

26 pages, 8figures

Scientific paper

10.1103/PhysRevC.72.054311

Evolution of quadrupole deformations in $sd$ and $pf$ shell nuclei with mass A= 18$\sim$56 is studied by using deformed Skyrme Hartree-Fock (HF) model with pairing correlations. We point out that the quadrupole deformations of the nuclei with the isospin T=0 and T=1 show strong mass number dependence as a clear manifestation of dynamical evolution of deformation in nuclear many-body systems. The competition between the deformation driving particle-vibration coupling and the closed shell structure is shown in a systematic study of the ratios between the proton and neutron deformations in nuclei with T=$|$T$_z|$=1. Calculated quadrupole and hexadecapole deformations are compared with shell model results and available experimental data. A relation between the skin thickness and the intrinsic Q$_2$ moments is also discussed.

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