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Soft giant dipole modes in Ca isotopes in the relativistic RPA
Cao, LG; Chen, BQ; Ma, ZY; Cao, LG , China Inst Atom Energy, POB 275-18, Beijing 102413, Peoples R China.
2001
发表期刊COMMUNICATIONS IN THEORETICAL PHYSICS
ISSN0253-6102
卷号36期号:2页码:178-182
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.
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
关键词Random-phase-approximation Neutron-rich Nuclei Finite Nuclei Resonances
学科领域Physics
收录类别SCI
WOS记录号WOS:000171143200012
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13684
专题理论物理所SCI论文
通讯作者Cao, LG , China Inst Atom Energy, POB 275-18, Beijing 102413, Peoples R China.
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GB/T 7714
Cao, LG,Chen, BQ,Ma, ZY,et al. Soft giant dipole modes in Ca isotopes in the relativistic RPA[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2001,36(2):178-182.
APA Cao, LG,Chen, BQ,Ma, ZY,&Cao, LG , China Inst Atom Energy, POB 275-18, Beijing 102413, Peoples R China..(2001).Soft giant dipole modes in Ca isotopes in the relativistic RPA.COMMUNICATIONS IN THEORETICAL PHYSICS,36(2),178-182.
MLA Cao, LG,et al."Soft giant dipole modes in Ca isotopes in the relativistic RPA".COMMUNICATIONS IN THEORETICAL PHYSICS 36.2(2001):178-182.
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