GROUP CHAIN CHECK ON THE PROTON-NEUTRON INTERACTING BOSON MODEL COMPUTER CODE NPBOS

LONG Gui-Lu; SUN Hong-Zhou

Chinese Physics C> 1989, Vol. 13> Issue(9) : 849-855

GROUP CHAIN CHECK ON THE PROTON-NEUTRON INTERACTING BOSON MODEL COMPUTER CODE NPBOS

LONG Gui-Lu ^, ,
SUN Hong-Zhou

Department of Physics,Tsinghua University,Beijing2 Institute of Theoretical Physics,Academia Sinica,Beijing

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Abstract：
In view of the proton boson and neutron boson coupling,all possible dynamical symmetries in the proton-neutron interacting boson model are discussed.The symmetries are found to be in four types,of which some are newly discovered.The commonly used IBM2 computer code NPBOS is checked through group chain method.It is found that most NPBOS calculations are correct,except in cases where Q_π Q_π and Q_v Q_v is included in the Hamiltonian.Using NPBOS,¹⁵⁰Sm and ¹⁵²Sm are studied.

References

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A. Arima and F. Iachello, Phys. Rev. Lett., 35(1975). 1069.[2] A. Arima and F. Iachello, Ann. Phys. (N.Y.) 89(1976). 253.[3] A. Arima and F. Iachello, Ann. Phys. (N.Y.) 111(1978).201.[4] A. Arima and F. Iachello, Ann. Phys. (N.Y.) 123(1979),468.[5] Q. Z. Han, H. Z. Sun and G. H. Li, Phys. Rev.C35(1987), 786.[6] J. A. Cizewski and R. F. Casten, Phys. Rev, Lett., 40(1918), 167.[7] 陈学俊、张玫、孙洪洲、韩其智，中国科学，A辑,1982,7,615.[8] 张玫、陈学俊、孙洪洲、韩其智，中国科学，A辑,1982,8,713.[9] 孙淇洲、韩茸智、院学俊、张玫，中国科学,A辑,1982,9，818.[10] A. E. L. Dieperink and I. Talmi, Phys. Lett., 131B(1983), 1.[11] T. Otsuka, computer code NPBOS, ve-sioa of 1985.[12] O. Scholten, computer code PH1NT.[13] O. Scholten, computer code ODDA.[14] Nucl. Data Sheet, 48(1986), 396.[15] Nucl. Data Sheet, 30(1980), 1.[16] O. Castanos and A. Frank and P. Federman, Phys, Letz[17] O. Scholten, Ph. D. thesis, 1980, page 25[18] O. Scholten, Ph. D. thesis, 1980, page 73.

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LONG Gui-Lu and SUN Hong-Zhou. GROUP CHAIN CHECK ON THE PROTON-NEUTRON INTERACTING BOSON MODEL COMPUTER CODE NPBOS[J]. Chinese Physics C, 1989, 13(9): 849-855.

LONG Gui-Lu and SUN Hong-Zhou. GROUP CHAIN CHECK ON THE PROTON-NEUTRON INTERACTING BOSON MODEL COMPUTER CODE NPBOS[J]. Chinese Physics C, 1989, 13(9): 849-855. 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

GROUP CHAIN CHECK ON THE PROTON-NEUTRON INTERACTING BOSON MODEL COMPUTER CODE NPBOS

LONG Gui-Lu ^,
SUN Hong-Zhou

Corresponding author: LONG Gui-Lu,

Department of Physics,Tsinghua University,Beijing2 Institute of Theoretical Physics,Academia Sinica,Beijing

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1989-09-05

Abstract: In view of the proton boson and neutron boson coupling,all possible dynamical symmetries in the proton-neutron interacting boson model are discussed.The symmetries are found to be in four types,of which some are newly discovered.The commonly used IBM2 computer code NPBOS is checked through group chain method.It is found that most NPBOS calculations are correct,except in cases where Q_π Q_π and Q_v Q_v is included in the Hamiltonian.Using NPBOS,¹⁵⁰Sm and ¹⁵²Sm are studied.