Hermitian Boson Expansion Approach of IBM Toward Cross Shell Excitation

DENG Wei-Zhen; YANG Ze-Sen

Chinese Physics C> 1992, Vol. 16> Issue(1) : 75-81

Hermitian Boson Expansion Approach of IBM Toward Cross Shell Excitation

DENG Wei-Zhen ^, ,
YANG Ze-Sen

Institute of High Energy Physics,Beijing 1000391 Department of Physics,Peking University,Beijing 100871

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Abstract：
By the Holstein-Primakoff boson expansion,an hermitian supplementary term with finite form is introduced into the IBM hamiltonian to describe the cross shell excitations.The method of intrinsic condensate is generalized to treat the intruder states.According to this scheme,the low-lying spectra of the Sn isotopes are calculated.Both the vibrational spectra and the additional rotational spectra are obtained.

References

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DENG Wei-Zhen and YANG Ze-Sen. Hermitian Boson Expansion Approach of IBM Toward Cross Shell Excitation[J]. Chinese Physics C, 1992, 16(1): 75-81.

DENG Wei-Zhen and YANG Ze-Sen. Hermitian Boson Expansion Approach of IBM Toward Cross Shell Excitation[J]. Chinese Physics C, 1992, 16(1): 75-81. shu

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

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