Journal ArticleDOI
Weizsäcker–Skyrme-type mass formula by considering radial basis function correction
Na Na Ma,H. F. Zhang,X. J. Bao,Peng Hui Chen,Jianmin Dong,Jun Qing Li,Jun Qing Li,Hong-Fei Zhang +7 more
TLDR
By incorporating with the radial basis function correction, the Weizsacker-Skyrme-type nuclear mass formula was further improved as discussed by the authors, and the root-mean-square (rms) deviation of the binding energies between the theoretical calculations and 2267 experimental masses has significantly reduced from 493 keV to 323 keV.Abstract:
By incorporating with the radial basis function correction, the Weizsacker-Skyrme-type nuclear mass formula was further improved. The root-mean-square (rms) deviation of the binding energies between the theoretical calculations and 2267 experimental masses has been significantly reduced from 493 keV to 323 keV. The alpha-decay energies Q(alpha) obtained from the binding energy by this hybrid formula also become more precise, i.e. the rms deviations for the Z = 74-118 even-even isotopes and for the 46 superheavy nuclei fall from 420 keV to 161 keV and from 501 keV to 230 keV, respectively. With the above calculated Q(alpha) values as inputs, the calculated alpha-decay half-lives for the even-even (Z = 74-118) nuclei agree with the experimental ones very well, especially for the superheavy nuclei. Thus the further improved Weizsacker-Skyrme-type nuclear mass formula is useful for predicting nuclear properties associated with mass evaluation systematically.read more
Citations
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Journal ArticleDOI
Basic characteristics of nuclear landscape by improved Weizsäcker-Skyrme-type nuclear mass model
TL;DR: An improved Weizsacker-Skyrme-type (WS-type) nuclear mass model with only 13 parameters was presented, including the correction from two combinatorial radial basis functions (RBFs), where shell and pairing effects are simultaneously dealt with using a Strutinsky-like method as mentioned in this paper.
Journal ArticleDOI
Global α -decay study based on the mass table of the relativistic continuum Hartree-Bogoliubov theory
Linfeng Zhang,Xue-Wei Xia +1 more
TL;DR: In this paper, the α-decay energies with the nuclear masses for 10 ≤ Z ≤ 120 isotopes obtained by the relativistic continuum Hartree-Bogoliubov (RCHB) theory with the covariant density functional PC-PK1, and compared with available experimental values.
Journal ArticleDOI
α decay and cluster radioactivity within the redefined preformed cluster method
Kang Wei,Hong-Fei Zhang +1 more
TL;DR: In this article, the authors investigated half-lives and potential barriers of cluster radioactivity in the framework of the generalized liquid drop model (GLDM), in which the decay constant is the product of the preformation factor, assault frequency, and penetration probability.
Journal ArticleDOI
Diffuseness effect and radial basis function network for optimizing α decay calculations
TL;DR: In this paper, a radial basis function network (RBFN) was adopted for the first time to optimize the calculation of the decay half-life in the generalized liquid drop model (GLDM), while concurrently incorporating the surface diffuseness effect.
Journal ArticleDOI
Properties of $$Z=$$ Z = 114 super-heavy nuclei
TL;DR: In this paper, the Weizsacker-Skyrme nuclear mass model (WS*) was used to calculate the binding energies, one-nucleon and two-Nucleon separation energies, and corresponding half-lives of superheavy nuclei.
References
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