Investigation of giant dipole resonances in heavy deformed nuclei with an extended quantum molecular dynamics model
Wang, S. S.1,2; Ma, Y. G.1,3; Cao, X. G.1; He, W. B.4; Kong, H. Y.1,2; Ma, C. W.5
2017-05-18
发表期刊PHYSICAL REVIEW C
ISSN2469-9985
卷号95期号:5
发表状态已发表
DOI10.1103/PhysRevC.95.054615
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
资助项目Natural Science Foundation in Henan Province[162300410179]
WOS研究方向Physics
WOS类目Physics, Nuclear
WOS记录号WOS:000401654900002
出版者AMER PHYSICAL SOC
WOS关键词ION COLLISIONS ; TRANSITION REGION ; CROSS-SECTIONS ; ISOTOPES
原始文献类型Article
通讯作者Ma, Y. G.
引用统计
文献类型期刊论文
条目标识符https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/1363
专题物质科学与技术学院_特聘教授组_马余刚组
通讯作者Ma, Y. G.
作者单位1.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Shanghai Tech Univ, Shanghai 200031, Peoples R China
4.Fudan Univ, Inst Modern Phys, Shanghai 200433, Peoples R China
5.Henan Normal Univ, Inst Particle & Nucl Phys, Xinxiang 453007, Peoples R China
通讯作者单位上海科技大学
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Wang, S. S.,Ma, Y. G.,Cao, X. G.,et al. Investigation of giant dipole resonances in heavy deformed nuclei with an extended quantum molecular dynamics model[J]. PHYSICAL REVIEW C,2017,95(5).
APA Wang, S. S.,Ma, Y. G.,Cao, X. G.,He, W. B.,Kong, H. Y.,&Ma, C. W..(2017).Investigation of giant dipole resonances in heavy deformed nuclei with an extended quantum molecular dynamics model.PHYSICAL REVIEW C,95(5).
MLA Wang, S. S.,et al."Investigation of giant dipole resonances in heavy deformed nuclei with an extended quantum molecular dynamics model".PHYSICAL REVIEW C 95.5(2017).
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