Giant halos in relativistic and nonrelativistic approaches

J. Terasaki, S. Q. Zhang, S. G. Zhou, and J. Meng
Phys. Rev. C 74, 054318 – Published 29 November 2006

Abstract

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 N40 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 3s1/2 orbit, causes more than 50% of the difference among the four calculations for neutron rms radii at Ca66.

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  • Received 3 March 2006

DOI:https://doi.org/10.1103/PhysRevC.74.054318

©2006 American Physical Society

Authors & Affiliations

J. Terasaki1, S. Q. Zhang1,2, S. G. Zhou2,3, and J. Meng1,2,3

  • 1School of Physics, Peking University, Beijing 100871, People's Republic of China
  • 2Institute of Theoretical Physics, Chinese Academy of Science, Beijing 100080, People's Republic of China
  • 3Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, People's Republic of China

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Issue

Vol. 74, Iss. 5 — November 2006

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