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Cao, LG; Chen, BQ; Ma, ZY; Cao, LG , China Inst Atom Energy, POB 275-18, Beijing 102413, Peoples R China.
Soft giant dipole modes in Ca isotopes in the relativistic RPA
Source PublicationCOMMUNICATIONS IN THEORETICAL PHYSICS
KeywordRandom-phase-approximation Neutron-rich Nuclei Finite Nuclei Resonances
AbstractThe 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.
2001
ISSN0253-6102
Volume36Issue:2Pages:178-182
Subject AreaPhysics
Indexed BySCI
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/13684
Collection理论物理所科研产出_SCI论文
Corresponding AuthorCao, LG , China Inst Atom Energy, POB 275-18, Beijing 102413, Peoples R China.
Recommended Citation
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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