Giant halos in relativistic and nonrelativistic approaches

Journal Article · Wed Nov 15 04:00:00 EST 2006 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.74.054318· OSTI ID:20864034

Terasaki, J ^[1]; Zhang, S Q ^[1]; Zhou, S G ^[2]; Meng, J ^[1]

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1. School of Physics, Peking University, Beijing 100871 (China)
2. Institute of Theoretical Physics, Chinese Academy of Science, Beijing 100080 (China)

The phenomena of giant halo and halo of neutron-rich even-Ca isotopes are investigated and compared in the frameworks of the relativistic continuum Hartree-Bogoliubov (RCHB) and non-relativistic Skyrme Hartree-Fock-Bogoliubov (HFB) calculations. With two parameter sets for each of the RCHB and the Skyrme HFB calculations, it is found that although halo phenomena exist for Ca isotopes near neutron drip line in both calculations, the halo of the Skyrme HFB calculations starts at a more neutron-rich nucleus than that of the RCHB calculations, and the RCHB calculations have larger neutron root-mean-square (rms) radii systematically in N{>=}40 than those of the Skyrme HFB calculations. The former difference comes from the difference in shell structure. The reasons for the latter can be partly explained by the neutron 3s{sub 1/2} orbit, causes more than 50% of the difference among the four calculations for neutron rms radii at {sup 66}Ca.

• OSTI ID: 20864034
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 5 Vol. 74; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CALCIUM ISOTOPES
HARTREE-FOCK-BOGOLYUBOV THEORY
NEUTRON-RICH ISOTOPES
NEUTRONS
NUCLEAR HALOS
NUCLEAR STRUCTURE
ORBITS
RELATIVISTIC RANGE
SHELL MODELS
SKYRME POTENTIAL