Monday, August 5, 2013

1308.0513 (Xiao-Tao He et al.)

Rotation and alignment of high-$j$ orbitals in transfermium nuclei    [PDF]

Xiao-Tao He, Zhen-Hua Zhang, Jin-Yan Zeng, En-Guang Zhao, Zhong-Zhou Ren, Werner Scheid, Shan-Gui Zhou
The structure of nuclei with $Z\sim100$ is investigated systematically by the Cranked Shell Model (CSM) with pairing correlations treated by a Particle-Number Conserving (PNC) method. In the PNC method, the particle number is conserved and the Pauli blocking effects are taken into account exactly. By fitting the experimental single-particle spectra in these nuclei, a new set of Nilsson parameters ($\kappa$ and $\mu$) is proposed. The experimental kinematic moments of inertia and the band-head energies are reproduced quite well by the PNC-CSM calculations. The band crossing, the effects of high-$j$ intruder orbitals and deformation are discussed in detail.
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