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Improved version of a binding energy formula for heavy and superheavy nuclei with Z >= 90 and N >= 140
Dong, Tiekuang1,3; Ren, Zhongzhou1,2,3
2008-06-01
发表期刊PHYSICAL REVIEW C
卷号77期号:6
摘要A local formula of binding energy for heavy and superheavy nuclei has very recently been proposed [Dong and Ren, Phys. Rev. C 72, 064331 (2005)]. In this paper, the limit of the predictive ability of this local formula is investigated. It is found that the neutron-proton correlations should be considered when higher precision is required. On the one hand, we introduce a new term vertical bar N-Z-50 vertical bar/A, and on the other hand we consider the different strengths of proton-proton, neutron-neutron, and neutron-proton pairing correlations. For the first time, the standard deviation root sigma(2) of the binding energies for 117 nuclei with Z >= 90 and N >= 140 is reduced to 0.105 MeV. The alpha decay energies Q(alpha) and half-lives T-alpha of nuclei with Z = 102-118 are reproduced quite well. The proton drip line of superheavy elements from Md (Z = 101) to Ds (Z = 110) are predicted.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
DOI10.1103/PhysRevC.77.064310
关键词[WOS]DECAY HALF-LIVES ; DATA SHEETS ; HEAVIEST NUCLEI ; MASS FORMULA ; ELEMENTS ; DEFORMATIONS ; SYSTEMATICS ; STABILITY
收录类别SCI
语种英语
WOS研究方向Physics
WOS类目Physics, Nuclear
WOS记录号WOS:000257290000022
引用统计
被引频次:26[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://libir.pmo.ac.cn/handle/332002/15884
专题暗物质和空间天文实验室
作者单位1.Nanjing Univ, Dept Phys, Nanjing 210008, Peoples R China
2.Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China
3.Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210008, Peoples R China
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Dong, Tiekuang,Ren, Zhongzhou. Improved version of a binding energy formula for heavy and superheavy nuclei with Z >= 90 and N >= 140[J]. PHYSICAL REVIEW C,2008,77(6).
APA Dong, Tiekuang,&Ren, Zhongzhou.(2008).Improved version of a binding energy formula for heavy and superheavy nuclei with Z >= 90 and N >= 140.PHYSICAL REVIEW C,77(6).
MLA Dong, Tiekuang,et al."Improved version of a binding energy formula for heavy and superheavy nuclei with Z >= 90 and N >= 140".PHYSICAL REVIEW C 77.6(2008).
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