Quasiparticles Plus Rotor Model and the Analysisof Level Statistics of Odd-Odd Nucleus
- Received Date: 2000-07-19
- Accepted Date: 1900-01-01
- Available Online: 2001-08-05
Abstract: The energy levels of odd-odd nucleus 84Y at low spins were calculated by using the axially symmetric particles plus rotor model. In order to study the statistical properties of the energy levels, the two standard tests of Random-Matrix Theory such as the nearest-neighbor level spacings and the spectral rigidity were adopted. It is shown that the chaotic degree of the energy levels initially increases with increasing spin and reaches a maximum around I=10, and then decreases for spins above I≈10. On the other hand, the proton-neutron interaction makes the energy levels slightly regular/ordered. However, the Coriolis force which makes the energy levels chaotic plays a major role in the spectral structure of the odd-odd nucleus 84Y.