Sunday, May 19, 2013

1305.3377 (Lulu Li et al.)

Microscopic and self-consistent description for neutron halo in deformed

Lulu Li, Jie Meng, P. Ring, En-Guang Zhao, Shan-Gui Zhou
A deformed relativistic Hartree-Bogoliubov theory in continuum has been developed for the study of neutron halos in deformed nuclei and the halo phenomenon in deformed weakly bound nuclei is investigated. Magnesium and neon isotopes are studied and some results are presented for the deformed neutron-rich and weakly bound nuclei 44Mg and 36Ne. The core of the former 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 existence of halos in deformed nuclei and for the occurrence of this decoupling effect are discussed.
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