Nuclear halo structure and pseudo-spin symmetry

Details Nuclear halo structure and pseudo-spin symmetry Nuclear halo structure and pseudo-spin symmetry

2010-01-27

arxiv.org/abs/1001.4976v3

Phys.Rev.C81:031302,2010

Physics

Nuclear Physics

Nuclear Theory

5pages, 4figures, 1table

Scientific paper

10.1103/PhysRevC.81.031302

Nuclear halo structure and restoration of relativistic symmetry are studied within the framework of the relativistic Hartree-Fock-Bogoliubov (RHFB) theory. Giant halos as well as ordinary ones are found in Cerium isotopes close to the neutron drip line. Bridged by T=0 {channel}, the restoration of pseudo-spin symmetry (PSS) plays an essential role in stabilizing the neutron halo structures. The Fock terms, especially the $\rho$-tensor couplings, not only play significant role in the PSS restoration but also present substantial contributions to the T=0 {channel}, from which is well demonstrated the necessity of Fock terms.

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