Chinese Physics C > 1992, Vol. 16 > Issue(3): 272-277

Intrinsic Condensate Method for Microsopic IBM2 and Calculation of¹⁶⁸Er Spectrum

DENG Wei-Zhen^,,
YANG Ze-Sen

Institute of High Energy Physics,Beijing 1000392 Department of Physics,Peking University,Beijing 100871

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Abstract：
By the intrinsic condensate method,an attemption is made to cancel the maximum F-spintruncation approximation usually adopted in IBM2.In the region of deformed nuclei,the intrinsic condensate and is intrinsic excitations are used to describe the low-lying collective rotational states.Using this method.the low-luing spectrum of ¹⁶⁸Er are calculated.The result show that the maximum F-spin truncation approximation become bad for the excitational bands,and the intrinsic excitations of neutron boson and proton boson are mutual separated.

References

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T. Otsuka, A. Arima, F. Iachello and I. Talmi, Phys. Lett., 66B(1977), 205[2] Yang Zesen, Liu Yong and Qi Hui, Nucl.Phys., A421(1984), 297c;杨泽森，高能物理与核物理，9(1985)，341,[3] T. Otsuka, A. Arima and N. Yoshinaga, Phys. Rev. Lett., 48(1982), 387.[4] Yang Zesen, Qi Hui, Yiu Yong and Deng Weizhen, International Sympsium on 1985(Beijing).[5] W. F. Davidson, D. D. Warner, R. F. Casten, et al., J. Phys., G7 D. D. Warner, R. F. Casten(1981), 455;and W. F. Davidson, Phys. Rev., 24(1981), 1713.[6] A. Novoselsky and I. Talmi, Phys. Lett., 160B(1985), 13.

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DENG Wei-Zhen and YANG Ze-Sen. Intrinsic Condensate Method for Microsopic IBM2 and Calculation of ¹⁶⁸Er Spectrum[J]. Chinese Physics C, 1992, 16(3): 272-277.

DENG Wei-Zhen and YANG Ze-Sen. Intrinsic Condensate Method for Microsopic IBM2 and Calculation of ¹⁶⁸Er Spectrum[J]. Chinese Physics C, 1992, 16(3): 272-277. 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

Intrinsic Condensate Method for Microsopic IBM2 and Calculation of¹⁶⁸Er Spectrum

DENG Wei-Zhen^,
YANG Ze-Sen

Corresponding author:DENG Wei-Zhen,

Institute of High Energy Physics,Beijing 1000392 Department of Physics,Peking University,Beijing 100871

Received Date:1900-01-01
Accepted Date:1900-01-01
Available Online:1992-03-05

Abstract:By the intrinsic condensate method,an attemption is made to cancel the maximum F-spintruncation approximation usually adopted in IBM2.In the region of deformed nuclei,the intrinsic condensate and is intrinsic excitations are used to describe the low-lying collective rotational states.Using this method.the low-luing spectrum of¹⁶⁸Er are calculated.The result show that the maximum F-spin truncation approximation become bad for the excitational bands,and the intrinsic excitations of neutron boson and proton boson are mutual separated.