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

Intrinsic Condensate Method for Microsopic IBM2 and Calculation of 168Er Spectrum

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

  • 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.
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    [1] 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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Intrinsic Condensate Method for Microsopic IBM2 and Calculation of 168Er Spectrum

    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 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.

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