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题名:
Investigation of giant dipole resonances in heavy deformed nuclei with an extended quantum molecular dynamics model
作者: Wang, SS; Ma, YG; Cao, XG; He, WB; Kong, HY; Ma, CW
刊名: PHYSICAL REVIEW C
出版日期: 2017
卷号: 95, 期号:5, 页码:-
DOI: 10.1103/PhysRevC.95.054615
文章类型: 期刊论文
英文摘要: The deformation evolution of giant dipole resonance (GDR), in the chains of Sm and Nd isotopes, are investigated in the framework of an extended quantum molecular dynamics (EQMD) model. The mass number dependence of resonance peak position (Em) in the major and minor axis directions of deformed nuclei as well as the difference Delta E-m between them are described in detail. The correlation between the splitting (Delta E-m/(E) over bar (m)) of the GDR spectra and the deformation (beta(2)) is further studied. The results confirm that Delta Em/(E) over barE(m) is proportional to beta(2). By comparing the calculation with the experimental data on photon absorption cross section sigma(gamma), it shows that the EQMD model can quite well reproduce the shape of GDR spectra from spherical to prolate shape. The GDR shapes in Sm-134, Sm-136, Sm-138, Nd-130, Nd-132, and Nd-134 are also predicted. In addition, the symmetry energy coefficient (E-sym) dependence of GDR spectra of Nd-150 is also discussed. It is found that the calculated GDR spectrum in the EQMD model is perfectly consistent with the experimental results when Esym equals 32 MeV.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000401654900002
ISSN号: 2469-9985
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/27359
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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Recommended Citation:
Wang, SS,Ma, YG,Cao, XG,et al. Investigation of giant dipole resonances in heavy deformed nuclei with an extended quantum molecular dynamics model[J]. PHYSICAL REVIEW C,2017-01-01,95(5):-.
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