Low-lying states and isospin excitation in the Ge isotopes

Falih H. Al-Khudair

doi:10.1088/1674-1137/33/7/007

Chinese Physics C> 2009, Vol. 33> Issue(7) : 538-546 DOI: 10.1088/1674-1137/33/7/007

Low-lying states and isospin excitation in the Ge isotopes

Falih H. Al-Khudair ^,

Department of Physics, Tsinghua University, Beijing 100084, China; Center of Nuclear Theory, Lanzhou Heavy Ion National Laboratory, Lanzhou 730000, China; Department of Physics, College of Education, Basrah University, Basrah, Iraq

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Abstract：
The level structure of ^64-70Ge isotopes has been studied within the framework of the interacting boson model-3 (IBM-3). The symmetry character in the proton and neutron degrees of freedom of the energy levels has been investigated. The isospin excitation states (T>T_z) have been assigned for the ⁶⁴Ge (N=Z) nucleus. Some intruder states in these nuclei have been suggested. The calculated energy levels and transition probabilities are in good agreement with recent experimental data. The study indicates that the Ge isotopes are in transition from γ-unstable to vibrational.

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Falih H. Al-Khudair. Low-lying states and isospin excitation in the Ge isotopes[J]. Chinese Physics C, 2009, 33(7): 538-546. doi: 10.1088/1674-1137/33/7/007

Falih H. Al-Khudair. Low-lying states and isospin excitation in the Ge isotopes[J]. Chinese Physics C, 2009, 33(7): 538-546. doi: 10.1088/1674-1137/33/7/007 shu

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Received: 2008-10-23
Revised: 2009-02-23

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沈阳化工大学材料科学与工程学院沈阳 110142

Low-lying states and isospin excitation in the Ge isotopes

Falih H. Al-Khudair ^,

Corresponding author: Falih H. Al-Khudair,

Department of Physics, Tsinghua University, Beijing 100084, China; Center of Nuclear Theory, Lanzhou Heavy Ion National Laboratory, Lanzhou 730000, China; Department of Physics, College of Education, Basrah University, Basrah, Iraq

Received Date: 2008-10-23
Accepted Date: 2009-02-23
Available Online: 2009-07-05

Abstract:

The level structure of ^64-70Ge isotopes has been studied within the framework of the interacting boson model-3 (IBM-3). The symmetry character in the proton and neutron degrees of freedom of the energy levels has been investigated. The isospin excitation states (T>T_z) have been assigned for the ⁶⁴Ge (N=Z) nucleus. Some intruder states in these nuclei have been suggested. The calculated energy levels and transition probabilities are in good agreement with recent experimental data. The study indicates that the Ge isotopes are in transition from γ-unstable to vibrational.