[Submitted on 5 Feb 2016]
Rotational Properties of the Odd- Transfermium Nucleus Lr by a Particle-number-conserving Method in the Cranked Shell Model
Yu-Chun Li🇨🇳 · Xiao-Tao He🇨🇳
Experimentally observed ground state band based on the Nilsson state and the first exited band based on the Nilsson state in the odd- nucleus Lr are studied by the cranked shell model (CSM) with the paring correlations treated by the particle-number-conserving (PNC) method. This is the first time the detailed theoretical investigations being performed on these rotational bands. Both the experimental kinematic and dynamic moment of inertia ( and ) versus rotational frequency are reproduced quite well by the PNC-CSM calculations. By comparing the theoretical kinematic moment of inertia with the experimental ones extracted from different spin assignments, the spin is assigned to the lowest-lying keV transition of the band, and to the keV transition of the band, respectively. The proton major shell is included in the calculations. The intruder of the high low orbitals at the high spin leads to the band-crossing at () MeV for the () band, and at MeV for the band, respectively. Further investigations show that the band-crossing frequencies are quadrupole deformation dependent.
- Comments:
- arXiv admin note: text overlap with arXiv:1208.1156 by other authors
- Subjects:
- Nuclear Theory (nucl-th)
- arXiv:
- 1602.01933 [pdf]