Rotation and alignment of high-j orbitals in transfermium nuclei

¹ Institut für Theoretische Physik, Justus-Liebig-Universität Giessen, Gießen 35392, Germany
² College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
³ State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
⁴ State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China
⁵ Department of Physics, Nanjing University, Nanjing 210093, China

^a e-mail: hext@nuaa.edu.cn

Published online: 20 March 2014

Abstract

The structure of nuclei with Z ~ 100 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 (κ and µ) 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.