Shape  Coexistence  in  Selenium  Isotopes

LIU  Ying; XU  Fu-rong; #; CAO  Zhong-bin

doi:10.11804/NuclPhysRev.27.02.146

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LIU Ying, XU Fu-rong, #, CAO Zhong-bin. Shape Coexistence in Selenium Isotopes[J]. Nuclear Physics Review, 2010, 27(2): 146-149. doi: 10.11804/NuclPhysRev.27.02.146

Citation:

LIU Ying, XU Fu-rong, #, CAO Zhong-bin. Shape Coexistence in Selenium Isotopes[J]. Nuclear Physics Review, 2010, 27(2): 146-149. doi: 10.11804/NuclPhysRev.27.02.146

Shape Coexistence in Selenium Isotopes

doi: 10.11804/NuclPhysRev.27.02.146

1 School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China;2 Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Research Facility in Lanzhou, Lanzhou 730000, China

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2010-06-20

Abstract

Nuclear shape change and shape coexistence in the Selenium isotopes have been investigated by TotalRouthianSurface(TRS) calculations. It is found that nuclear shapes vary significantly with increasing neutron number. The TRS calculations for the ground states of 66, 72, 92, 94Se isotopes show that both neutrondeficient and neutrondripline Selenium isotopes have oblate and prolate shape coexistence. The cranking shellmodel calculations for 72, 94Se give that prolate and oblate shape coexistence in low rotational frequency. However, oblate rotational bands disappear and prolate rotational bands become yrast bands with increasing rotational frequency, which is due to the intrusion of the g9/2 orbitals.
- shape coexistence,
- cranking shell model,
- Total Routhian Surface calculation
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Shape Coexistence in Selenium Isotopes

doi: 10.11804/NuclPhysRev.27.02.146

1 School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China;2 Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Research Facility in Lanzhou, Lanzhou 730000, China

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2010-06-20

Key words:

Abstract: Nuclear shape change and shape coexistence in the Selenium isotopes have been investigated by TotalRouthianSurface(TRS) calculations. It is found that nuclear shapes vary significantly with increasing neutron number. The TRS calculations for the ground states of 66, 72, 92, 94Se isotopes show that both neutrondeficient and neutrondripline Selenium isotopes have oblate and prolate shape coexistence. The cranking shellmodel calculations for 72, 94Se give that prolate and oblate shape coexistence in low rotational frequency. However, oblate rotational bands disappear and prolate rotational bands become yrast bands with increasing rotational frequency, which is due to the intrusion of the g9/2 orbitals.

LIU Ying, XU Fu-rong, #, CAO Zhong-bin. Shape Coexistence in Selenium Isotopes[J]. Nuclear Physics Review, 2010, 27(2): 146-149. doi: 10.11804/NuclPhysRev.27.02.146

Citation:

LIU Ying, XU Fu-rong, #, CAO Zhong-bin. Shape Coexistence in Selenium Isotopes[J]. Nuclear Physics Review, 2010, 27(2): 146-149. doi: 10.11804/NuclPhysRev.27.02.146