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题名: Soft giant dipole modes in Ca isotopes in the relativistic RPA
作者: Cao, LG ;  Chen, BQ ;  Ma, ZY
刊名: COMMUNICATIONS IN THEORETICAL PHYSICS
出版日期: 2001
卷号: 36, 期号:2, 页码:178-182
关键词: RANDOM-PHASE-APPROXIMATION ;  NEUTRON-RICH NUCLEI ;  FINITE NUCLEI ;  RESONANCES
学科分类: Physics
通讯作者: Cao, LG , China Inst Atom Energy, POB 275-18, Beijing 102413, Peoples R China.
部门归属: China Inst Atom Energy, Beijing 102413, Peoples R China; Natl Lab Heavy Ion Accelerator, Ctr Nucl Theoret Phys, Lanzhou 730000, Peoples R China; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: The isovector giant dipole resonance in Ca isotopes is investigated in the framework of the fully consistent relativistic random phase approximation. The calculations are performed in an effective Lagrangian with a parameter set NL3, which was proposed for satisfactorily describing nuclear ground state properties. It is found that a soft isovector dipole mode for Ca isotopes near drip lines exists at energy around 6 similar to 7 MeV. The soft dipole states are mainly due to the excitation of the weakly bound and pure neutron (proton) states near Fermi surface as well as the correlation of isoscalar and isovector operators. For nuclei with the extreme value of N/Z, the contributions of isoscalar mesons in the isovector mode play a non-negligible role.
收录类别: SCI
WOS记录号: WOS:000171143200012
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13684
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,Chen, BQ,Ma, ZY. Soft giant dipole modes in Ca isotopes in the relativistic RPA[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2001,36(2):178-182.
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