THE SU(14) AND SU(5) LIMITING CASES OF s.d. g IBM
- Received Date: 1981-07-08
- Accepted Date: 1900-01-01
- Available Online: 1982-08-05
Abstract: Based on the s. d IBM proposed by Arima and Iachello, g boson is introducedTwo chains of subgroups, SU(15)SU(5)
SO(5)
SO(3) and SU(15)
SU(14)
SO(5)
S0(3) (i,e two limiting cases, SU(5) and SU(14)), of the s.d.g IBM arediscussed. It is shown that there appear 1+ states in these limiting cases, but not inthe s.d IBM and s.g IBM. The spectra of 200Hg are calculated in the SU(14) and SU(5) limiting cases and agreed with experiments. The results show that the excita-tion of g boson is possible in some vibrational nuclei.