Microscopic IBM-2 Description of the Phase Transition of Nuclear Spectra Near A=130

ZHAO Xiao-Feng; LI Xian-Yin

Chinese Physics C> 1991, Vol. 15> Issue(3) : 240-244

Microscopic IBM-2 Description of the Phase Transition of Nuclear Spectra Near A=130

ZHAO Xiao-Feng ^, ,
LI Xian-Yin

Anhui University,Hefei 230039

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Abstract：
The phase transition of low-lying energy spectrum structure for Ba isotopes and Sm isotopes are studied in the framework of microscopic IBM-2 based on the boson expansion.It seems possible to describe the phase transition in a unified way within the approach.

References

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Interacting Boson-Fermi System in Nuclei, ed. F. Iachello, (Plenum, New York, 1981).[2]T, S. Yang, Y. Liu and H. Qi, Nucl. Phys., A421(1984), 297c.[3] 杨泽森、刘庸、田晓岭,高能物理与核物理,6(1982),472.[4] 杨泽森,高能物理与核物理,9(1985),341.[5] 刘庸,博士论文,北京大学,1984.[6] T. Otsuka and N. Yoshida, JAER1-M Report, 85-094.[7] R. F. Casten and P. Von Brentano, Phys. Lett., 152(1985), 22.[8] G. Puddu, O. Scholten and T. Otsuka, Nucl. Phys., A384(1980), 109.[9] 王玉成、刘庸,高能物理与核物理,14(1990),247.[10] O. Castanos, P. Federman, A. Frank and S, Pittel, Nucl. Phys.; A1379(1982), 61.[11] M. Saika and Y. Gono, Quasi-ground, Quasi-bats, Quasi-gamma Bands, INS-J160, (July, 1979).[12] P. Von Brentano, A. Gelberg, S. Harissopulos and R. F. Casten, Phys. Rev., c38(1988), 2386.[13] R. F. Casters et al., Nucl. Phys., A439(1985), 289.[14] A. Novoselsky and I. Talmi, Phys. Letts., B172(1986), 139

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ZHAO Xiao-Feng and LI Xian-Yin. Microscopic IBM-2 Description of the Phase Transition of Nuclear Spectra Near A=130[J]. Chinese Physics C, 1991, 15(3): 240-244.

ZHAO Xiao-Feng and LI Xian-Yin. Microscopic IBM-2 Description of the Phase Transition of Nuclear Spectra Near A=130[J]. Chinese Physics C, 1991, 15(3): 240-244. shu

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Microscopic IBM-2 Description of the Phase Transition of Nuclear Spectra Near A=130

ZHAO Xiao-Feng ^,
LI Xian-Yin

Corresponding author: ZHAO Xiao-Feng,

Anhui University,Hefei 230039

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1991-03-05

Abstract: The phase transition of low-lying energy spectrum structure for Ba isotopes and Sm isotopes are studied in the framework of microscopic IBM-2 based on the boson expansion.It seems possible to describe the phase transition in a unified way within the approach.