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题名: Low-lying dipole modes in Ne-26,Ne-28 in the quasiparticle relativistic random phase approximation
作者: Cao, LG ;  Ma, ZY
刊名: PHYSICAL REVIEW C
出版日期: 2005
卷号: 71, 期号:3, 页码:-
关键词: MEAN-FIELD THEORY ;  RICH OXYGEN ISOTOPES ;  GIANT-RESONANCES ;  SUM-RULE ;  CONTINUUM ;  NUCLEI ;  EXCITATIONS ;  STATES ;  QRPA
学科分类: Physics
通讯作者: Cao, LG , Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China.
部门归属: Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China; China Ctr Adv Sci & Technol, World Lab, Beijing 100080, Peoples R China; Inst Atom Energy, Beijing 102413, Peoples R China; Natl Lab Heavy Ion Accelerator Lanzhou, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: The low-lying isovector dipole strengths in the neutron-rich nuclei Ne-26 and Ne-28 are investigated in the quasiparticle relativistic random phase approximation. Nuclear ground-state properties are calculated in an extended relativistic mean field theory plus Bardeen-Cooper-Schrieffer (BCS) method where the contribution of the resonant continuum to pairing correlations is properly treated. Numerical calculations are tested in the case of isovector dipole and isoscalar quadrupole modes in the neutron-rich nucleus O-22. It is found that in the present calculation, low-lying isovector dipole strengths at E-x < 10 MeV in nuclei Ne-26 and Ne-28 exhaust about 4.9% and 5.8% of the Thomas-Reiche-Kuhn dipole sum rule, respectively. The centroid energy of the low-lying dipole excitation is located at 8.3 MeV in Ne-26 and 7.9 MeV in Ne-28.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000228643500015
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13870
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Cao, LG,Ma, ZY. Low-lying dipole modes in Ne-26,Ne-28 in the quasiparticle relativistic random phase approximation[J]. PHYSICAL REVIEW C,2005,71(3):-.
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