Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2009-09-09
Phys. Rev. C82:011301R, 2010
Physics
Nuclear Physics
Nuclear Theory
5 pages, 6 EPS figures; to be published in Phys. Rev. C
Scientific paper
10.1103/PhysRevC.82.011301
Halo phenomena in deformed nuclei are investigated within a deformed relativistic Hartree Bogoliubov (DRHB) theory. These weakly bound quantum systems present interesting examples for the study of the interdependence between the deformation of the core and the particles in the halo. Contributions of the halo, deformation effects, and large spatial extensions of these systems are described in a fully self-consistent way by the DRHB equations in a spherical Woods-Saxon basis with the proper asymptotic behavior at large distance from the nuclear center. Magnesium and neon isotopes are studied and detailed results are presented for the deformed neutron-rich and weakly bound nucleus $^{44}$Mg. The core of this nucleus is prolate, but the halo has a slightly oblate shape. This indicates a decoupling of the halo orbitals from the deformation of the core. The generic conditions for the occurence of this decoupling effects are discussed.
Meng Jie
Ring Peter
Zhao En-Guang
Zhou Shan-Gui
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